8.1 Liter 2500 HD pickups???

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bowhuntinfool
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Joined: Tuesday, May 11, 2004 - 12:00am
8.1 Liter 2500 HD pickups???

I am looking into buying a different truck, because the 01 Chevy with the 5.3 is not going to handle my horse trailer this summer. I am curious if anyone out there has a 3/4 ton chevy with the 8.1 liter and the Allison tranny. What kind of mileage are you getting empty and pulling. Any info would be appreciated.

perchjigger
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Joined: Wednesday, January 23, 2002 - 12:00am

We have a 2004 3/4 ton with the 8.1 litre in it with the Allison tranny. Excellent motor and a bulletproof tranny! We get about 8mpg with it when we are not pulling and about 5mpg when we are pulling it. Plenty of power if you are willing to feed it!

bowhuntinfool
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Joined: Tuesday, May 11, 2004 - 12:00am

Wow thats not near what I was told that they would get. I was talking to a dealer the other day and he told me that the 8.1 liters are getting better mileage than the 6 liter 3/4 ton pickups. Thanks for the info. Do you think that this is about average or do you think he was telling a tall tale.

Snow,
If I understand correctly, you are a chevy dealer right? What have you heard from customers?

deere_9600
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Joined: Friday, February 13, 2004 - 12:00am

Get a Ford F350 diesel, 16.5 mpg hwy, 12 pullin HEAVY trailer. Have they got the allison tranny bug fixed on the chevies?? just curious

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gonefshn
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Joined: Sunday, December 16, 2001 - 12:00am

I had a 2001 2500HD Crew with the 8.1 and Allison and just got a 2005. With my 2001, I typically drove 75-85mph (what can I say...I speed a bit). My mileage was a pretty consistent 12mpg. The 2001 had a 4:10 rear end. Towing my boat (2025 Lund Pro V) last year out to Lake Michigan I got between 9 & 10 at 70-75mph. The best I ever got was 14 (nice day, now wind, towing nothing). The worst 5. The 5 was pulling a 32foot high profile 5th wheel and my boat into a 35-50 mph wind. Even pulling those things into the wind I was easily able to do 70-75. The power is AWESOME. Coming back without the wind I got 8. I have no idea what it got in city driving because most of my driving is highway. I'm sure it wouldn't be very good though. I only have about 3000 miles on my new 2005 and it appears I'm getting between 10 and 12 on the highway so far. My 2005 has a 3.73 rear end. Good Luck. If you don't like the smell and mess of a diesel, you'll love the 8.1. I'd probably go with the Duramax, but I ice fish out of my truck and they're still too noisy and choke out anyone down wind of you.

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gonefshn
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Joined: Sunday, December 16, 2001 - 12:00am

btw....I never ever had a tranny problem. The Allison's a pretty cool tranny. When you press that tow/haul button, the truck becomes a totally different truck. It's nice to have a tranny and engine that actually work together.

bowhuntinfool
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Joined: Tuesday, May 11, 2004 - 12:00am

Originally I was planning on buying a Duramax, but with Diesel prices and the initial cost of the Diesel trucks is figuring to be a bit high for my price range. For a used truck with less than 50,000 miles there seems to be about a 7-$10,000 difference. Plus Diesel is about 20 cents a gallon higher in price than gasoline. I still haven't made up my mind and that is why I am asking these questions. I figured that I would ask people that use there rigs for multiple uses...Hunting, Fishing, & work.

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veryslippery
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Joined: Wednesday, January 23, 2002 - 12:00am

I worked for a guy with the 8.1. Pulling a skidder or driving with just the box loaded with tools it seemed to always be around 8-10. I think the only way i would buy one is if i planned to tow large stuff all the time. My dad has the 6.0 and it shifts a lot during pulling but when you unhook you do get better milage. He has pulled a 5th wheel all the way to alaska, and this winter to texas and back and the truck hasnt had any troubles.

NSO Field Staff...
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Joined: Monday, February 7, 2005 - 8:26pm

bowhuntin,
Yup,I'm a dealer and "yup" someone is triing to off their 8.1.There has been pushrod issue's on some around 30k,the tranny is Bullet proof unless there has been a tire upgrade(larger size)from factory spec's,LT245.The larger tire will change the shifting pattern,thus cause excessive wear.Now there are other option's and ways around the larger tires.Any question's shoot me a e-mail "www.northstaroutdoors.com"

Sold a paving company a bunch of HD's a few years back w/8100,now they are in the same truck but running the duramax... Worth the money if you drive alot or pull/payload is heaving.

NSO Field Staff...
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bowhuntin,
This is Snow...

carhartt_hunter
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Joined: Sunday, December 21, 2003 - 12:00am

I would also recommend the duramax diesel. I got back last night from a trip to Missouri with an '03 one ton dually. We were pulling a 32' stock trailer and made around 8 miles to the gallon. The power is unbelievable. We drove between 75 and 80 most of the way(we had places to be) and the pickup handled it with no problems.

bowhuntinfool
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Joined: Tuesday, May 11, 2004 - 12:00am

I know that I would prefer a duramax, but I am a little worried to say the least to buy a used one, due to all the misuse of chips and reprogramming. Maybe I shouldn't be but..... I know if I buy a duramax, that I will be putting one in, but at least I will know I haven't abused the motor or tranny.

Snow,
I couldn't get an e-mail to send yesterday.
Drop me a line at wranglers_@hotmail.com
I will reply back to you. Thanks...

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walynut
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Joined: Wednesday, January 8, 2003 - 12:00am

Snow,
Offline question for you, have there been alot of problems with the door hinges on the new chevy's? My 05 Durmax 3/4 HD already has sprung one door and the other is about to go. No major wind or nothing.

 

Good Luck and Good Fishin'

Eric T

NSO Field Staff...
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Joined: Monday, February 7, 2005 - 8:26pm

walynut,
Not that I know of? I'll check into it and let you know if anything pop's up.

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walynut
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Joined: Wednesday, January 8, 2003 - 12:00am

Thanks, Tim

Little annoyed, 5000 miles and $700.00 damages for no real reason. Never new that three little marks in the door from hitting the hinges cost so much. Maybe I need to get into the bodywork buss. LOL

 

Good Luck and Good Fishin'

Eric T

mallard man
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Joined: Saturday, October 26, 2002 - 12:00am

A diesel would be far better for pulling than a gas. A friend of mine just went to Oklahoma and averaged 25 mpg with a 2004 Dodge Cummins that was with the box full with a tool box and 2 Combine rotors. He said that we also get about 30 mpg when he drives it decent. He has the Edge performace chip in it to get this kind of mileage though.

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jtillman
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Can a guy really get 25+ mpg with a Diesel and a chip?...boy if so, I made a big mistake trading my SUV for a car to save some money on gas....

bowhuntinfool
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mallard man,

Has your buddy had any problems with the tranny? Is it an Auto or Manual? There are some really good rebates right now on Dodges, but I have always been a little leary of their trannies.

One of my buddies chipped up a 1999 ford 7.3 and his first trip after chipping it, he went to Arizona and averaged 23mpg for the whole trip. Evidently conditions were perfect, because after he got back he has been only averaging about 18-19mpg, which is still good. Do all cummins get that good of mileage? I have heard the newer ones get worse mileage than the old...

mallard man
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Joined: Saturday, October 26, 2002 - 12:00am

He has a 6 speed manual in it. He hasnt had any trouble with the tranny in it and he beats the heck out of everything. He has a 2004 i believe. My dad just bought a 2005 and the dealer told him that the 2004 get better fuel milage though. The Edge programmer he has also gives it 75 more horsepower but can be adjusted to more but if it is moved up anymore he would need to change to a 4" exhaust system.

Purcy22
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Joined: Saturday, July 11, 2009 - 4:34pm

You're in luck.  I have a black 2003 suburban with an 8.1 liter engine that I have decided to sell.  I had a race trailer I pulled about 10,000 milies and the 8.1 liter engine never blinked.  You can't even tell you're pulling a trailer - even up hills.  This has been the best truck I have ever owned.  I sold my trailer 3 years ago and I have been trying to rationalize why I am keeping it.  But now I am driving  my kids all over the place and it's time.  I have 103 K miles on it and it runs like the day I bought it.  I live in Indiana.  Give me a call if you want to talk.  My cell is 317 496-8567.  Jim

Purcy22

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SkeeterWX
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mallard man Said:
A diesel would be far better for pulling than a gas. A friend of mine just went to Oklahoma and averaged 25 mpg with a 2004 Dodge Cummins that was with the box full with a tool box and 2 Combine rotors. He said that we also get about 30 mpg when he drives it decent. He has the Edge performace chip in it to get this kind of mileage though.

Thats the bigges bunch of hogwash I've read in a while, there's no way in hell that he can get 25mpg emty moreless 30mpg as he claimed. Although I'm an avid outdoorsman my number one passion is trucks and there is NO, NOTTA, NOTHING MADE IN A 3/4 or 1 Ton truck that even get close to those claims! NEVER HAS, NEVER WILL! the most fuel effiecent diesels made were the mid production 7.3L Powerstrokes (96'-98'), a good number of the Cummins for about 94"-02", and some of the early Duramax's could see a tad over 20 give or take with optimal conditions and keeping your foot out of it, that means 60mph. Crank em up to 75mph and they lose about 3mpg! For reference, a 97' PSD F250 extd cab long box with stock tires (265s), 3.55 gearing, a topper, with a custum burned SCT 5 position chip and full exhaust went from a 17mpg truck to a 20mpg truck so long as you drive at 65mph or less. this is a constant and achievable mileage, not a "I was able to hit 25mpg one time will driveing 55mph, with a tail wind, and heading down hill" type of claim.

Enough of that, that 8.1L is a good solid engine and got similar mileage to the early versions of the 6.0 Vortech V-8 and the Ford V10s. Depending on the configuration of the truck you should see 13-14 on long highway runs 10-12 in town and 6-8 towing anything substantial. They have a lot of gunt down low and breath realitively well when you wind them up a bit in the RPM range. I personally have owned a V10 for the last 5 years and run with a buddy that has the 8.1. comparitively speaking the 8.1 is on average about 1mpg thirstier than my V10 under the same conditions. it does how ever seem to have a little more grunt down low in the RPMS but looses that advantage once there wound up a bit. this is primarly due to that extra 1.3L of displacement. his only complaint is for what ever reason, since the day it came off the lot, it's always wanted a quart of oil every 3k miles. I don't think they are all this way but it runs like champ and has been very good. You can't go wrong with one as long as you can come to terms with the fuel mielage.

I've never personally driven his with a load but have followed him to the lake and although he's pulling about 4-5k lbs less than I am (I'm grossing about 22k), I've yet to see any hills he hasn't been able to run 65mph back up to the top, this includes trips between Minot and Bismarck and the two hills west of garrison heading towards douglas bay and indian hills.

I will add that we've both noticed that our trucks use LOTS of fuel ideling. We can drive to the lake 50-70 miles pulling the train and use a 1/4 tank of fuel, but the 4 trips to the boat landing and back, hooking and unhooking the trailers, and a trip over to get bait, a total of about 10 miles, uses another 1/4 tank of fuel.

marksman
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Joined: Monday, November 21, 2005 - 10:53pm

A chipped diesel will get a 40% improvement. 
If you have any money bring it on. Stepson with 02 dodge 5 speed driving 70 mph comming back from Denver got 24.4 . He used my credit card because I needed him back here. If you drive them like you stole them nothing gets good mileage.

If a diesel gets 17 without chip it will get 22-24 chipped.

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getajob
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Joined: Sunday, December 16, 2001 - 12:00am

i have a 04 duramax i pull a high profile camper and get 10. with a boat behind that maybe 9 the transmission is indestructable, the motor in a 04 and older has had some injector issues. but that is a warranty covered issue. as far as the price difference between the gas and duramax, your mileage increase will more than pay for itself in 2 years if you drive 12k miles a year. That being said, in my opinion duramax p/u are really not made to be grocery getters. if you want to make short trips around town use a car. I hear more people having trouble by driving short trips than any other thing. but i would never buy a 8100 over a duramax just to save a few bucks those are 150k motors at best

if you are to old to cut the mustard at least  lick the jar

getajob
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Joined: Sunday, December 16, 2001 - 12:00am

the best mileage i got was21 on a trip to sd with a good tailwind and driving 70 but if you drive 75 you lose at least 1 mpg and who exactly gets 30 with a dodge? is it maybe justin theel?

if you are to old to cut the mustard at least  lick the jar

_nilem_
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Joined: Sunday, September 3, 2006 - 2:55pm

I have a 2006 2500HD Crew 8.1 6 speed allison 3.73 rear with about 37k on it and am always between 12 and 14. I have to agree with yarcraftstorm does seem to be thirsty when you put around but I have never been below 10 mpg. So far I love the truck, can't stand having a diesel in the winter time so this was my best option. Truck before was 2500HD 6.0 4.10 rear and made 14 so no big difference there. Most people I talk to the 6.0 never does much better than 16 and has alot less power.

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Allen
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Joined: Wednesday, January 9, 2002 - 12:00am

This may seem like a stupid question, but if the performance is so much better with the chipped diesel engines, what's the drawback that keeps the manufacturers from using the chip settings as factory original?

There has to be something or Ford, GM, and Dodge (going out on a limb with the last one) engineers have far more data and understanding of those vehicles than anyone at an aftermarket chip manufacturer.

“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain

davedemo76
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Joined: Thursday, October 21, 2010 - 8:41am

that no bull about getting 25+mpg with a cummins i own a 2002 dodge extended cab long box 4x4 with a cummins with over 200k on it with an edge juice with attitude in it and even on a windy day i can get 25 miles to the gallon at 70mph on the highway highest ive got was 31 at 65mph on a calm day

YarcraftStorm Said:

mallard man Said:
A diesel would be far better for pulling than a gas. A friend of mine just went to Oklahoma and averaged 25 mpg with a 2004 Dodge Cummins that was with the box full with a tool box and 2 Combine rotors. He said that we also get about 30 mpg when he drives it decent. He has the Edge performace chip in it to get this kind of mileage though.

Thats the bigges bunch of hogwash I've read in a while, there's no way in hell that he can get 25mpg emty moreless 30mpg as he claimed. Although I'm an avid outdoorsman my number one passion is trucks and there is NO, NOTTA, NOTHING MADE IN A 3/4 or 1 Ton truck that even get close to those claims! NEVER HAS, NEVER WILL! the most fuel effiecent diesels made were the mid production 7.3L Powerstrokes (96'-98'), a good number of the Cummins for about 94"-02", and some of the early Duramax's could see a tad over 20 give or take with optimal conditions and keeping your foot out of it, that means 60mph. Crank em up to 75mph and they lose about 3mpg! For reference, a 97' PSD F250 extd cab long box with stock tires (265s), 3.55 gearing, a topper, with a custum burned SCT 5 position chip and full exhaust went from a 17mpg truck to a 20mpg truck so long as you drive at 65mph or less. this is a constant and achievable mileage, not a "I was able to hit 25mpg one time will driveing 55mph, with a tail wind, and heading down hill" type of claim.

Enough of that, that 8.1L is a good solid engine and got similar mileage to the early versions of the 6.0 Vortech V-8 and the Ford V10s. Depending on the configuration of the truck you should see 13-14 on long highway runs 10-12 in town and 6-8 towing anything substantial. They have a lot of gunt down low and breath realitively well when you wind them up a bit in the RPM range. I personally have owned a V10 for the last 5 years and run with a buddy that has the 8.1. comparitively speaking the 8.1 is on average about 1mpg thirstier than my V10 under the same conditions. it does how ever seem to have a little more grunt down low in the RPMS but looses that advantage once there wound up a bit. this is primarly due to that extra 1.3L of displacement. his only complaint is for what ever reason, since the day it came off the lot, it's always wanted a quart of oil every 3k miles. I don't think they are all this way but it runs like champ and has been very good. You can't go wrong with one as long as you can come to terms with the fuel mielage.

I've never personally driven his with a load but have followed him to the lake and although he's pulling about 4-5k lbs less than I am (I'm grossing about 22k), I've yet to see any hills he hasn't been able to run 65mph back up to the top, this includes trips between Minot and Bismarck and the two hills west of garrison heading towards douglas bay and indian hills.

I will add that we've both noticed that our trucks use LOTS of fuel ideling. We can drive to the lake 50-70 miles pulling the train and use a 1/4 tank of fuel, but the 4 trips to the boat landing and back, hooking and unhooking the trailers, and a trip over to get bait, a total of about 10 miles, uses another 1/4 tank of fuel.

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davedemo76 Said:
that no bull about getting 25+mpg with a cummins i own a 2002 dodge extended cab long box 4x4 with a cummins with over 200k on it with an edge juice with attitude in it and even on a windy day i can get 25 miles to the gallon at 70mph on the highway highest ive got was 31 at 65mph on a calm day
YarcraftStorm Said:

mallard man Said:
A diesel would be far better for pulling than a gas. A friend of mine just went to Oklahoma and averaged 25 mpg with a 2004 Dodge Cummins that was with the box full with a tool box and 2 Combine rotors. He said that we also get about 30 mpg when he drives it decent. He has the Edge performace chip in it to get this kind of mileage though.

Thats the bigges bunch of hogwash I've read in a while, there's no way in hell that he can get 25mpg emty moreless 30mpg as he claimed. Although I'm an avid outdoorsman my number one passion is trucks and there is NO, NOTTA, NOTHING MADE IN A 3/4 or 1 Ton truck that even get close to those claims! NEVER HAS, NEVER WILL! the most fuel effiecent diesels made were the mid production 7.3L Powerstrokes (96'-98'), a good number of the Cummins for about 94"-02", and some of the early Duramax's could see a tad over 20 give or take with optimal conditions and keeping your foot out of it, that means 60mph. Crank em up to 75mph and they lose about 3mpg! For reference, a 97' PSD F250 extd cab long box with stock tires (265s), 3.55 gearing, a topper, with a custum burned SCT 5 position chip and full exhaust went from a 17mpg truck to a 20mpg truck so long as you drive at 65mph or less. this is a constant and achievable mileage, not a "I was able to hit 25mpg one time will driveing 55mph, with a tail wind, and heading down hill" type of claim.

Enough of that, that 8.1L is a good solid engine and got similar mileage to the early versions of the 6.0 Vortech V-8 and the Ford V10s. Depending on the configuration of the truck you should see 13-14 on long highway runs 10-12 in town and 6-8 towing anything substantial. They have a lot of gunt down low and breath realitively well when you wind them up a bit in the RPM range. I personally have owned a V10 for the last 5 years and run with a buddy that has the 8.1. comparitively speaking the 8.1 is on average about 1mpg thirstier than my V10 under the same conditions. it does how ever seem to have a little more grunt down low in the RPMS but looses that advantage once there wound up a bit. this is primarly due to that extra 1.3L of displacement. his only complaint is for what ever reason, since the day it came off the lot, it's always wanted a quart of oil every 3k miles. I don't think they are all this way but it runs like champ and has been very good. You can't go wrong with one as long as you can come to terms with the fuel mielage.

I've never personally driven his with a load but have followed him to the lake and although he's pulling about 4-5k lbs less than I am (I'm grossing about 22k), I've yet to see any hills he hasn't been able to run 65mph back up to the top, this includes trips between Minot and Bismarck and the two hills west of garrison heading towards douglas bay and indian hills.

I will add that we've both noticed that our trucks use LOTS of fuel ideling. We can drive to the lake 50-70 miles pulling the train and use a 1/4 tank of fuel, but the 4 trips to the boat landing and back, hooking and unhooking the trailers, and a trip over to get bait, a total of about 10 miles, uses another 1/4 tank of fuel.

According to the "mileage readout" on your pickup or according to your calculator using gallons filled and miles driven? 

J

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iluvswnd
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Allen Said:
This may seem like a stupid question, but if the performance is so much better with the chipped diesel engines, what's the drawback that keeps the manufacturers from using the chip settings as factory original?

There has to be something or Ford, GM, and Dodge (going out on a limb with the last one) engineers have far more data and understanding of those vehicles than anyone at an aftermarket chip manufacturer.

Buddy and I were talking about this the other day. The best we can figure is that they have certain EPA requirements that they are required to meet as well as other specs that they try to get close to to get certain certifications.

Also, the engineers of the motors and tranny's probably know how much to push the engines before you will see wear sooner on any components. 

I'm just guessing btw

J

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YarcraftStorm Said:
I will add that we've both noticed that our trucks use LOTS of fuel ideling. We can drive to the lake 50-70 miles pulling the train and use a 1/4 tank of fuel, but the 4 trips to the boat landing and back, hooking and unhooking the trailers, and a trip over to get bait, a total of about 10 miles, uses another 1/4 tank of fuel.

Hah, and here I thought that was a Ford problem.  I see a very similar pattern in my 09 F250 diesel while at campgrounds.  Beaver Bay in particular this summer. 

I swear you'd think you were siphoning out some fuel to start your campfires.

“Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it.” ~ Mark Twain

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mallard man Said:
A diesel would be far better for pulling than a gas. A friend of mine just went to Oklahoma and averaged 25 mpg with a 2004 Dodge Cummins that was with the box full with a tool box and 2 Combine rotors. He said that we also get about 30 mpg when he drives it decent. He has the Edge performace chip in it to get this kind of mileage though.

Hmm, Maybe. But id probably get your friend a calculator.

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eyexer
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BringingTheRain Said:

mallard man Said:
A diesel would be far better for pulling than a gas. A friend of mine just went to Oklahoma and averaged 25 mpg with a 2004 Dodge Cummins that was with the box full with a tool box and 2 Combine rotors. He said that we also get about 30 mpg when he drives it decent. He has the Edge performace chip in it to get this kind of mileage though.

Hmm, Maybe. But id probably get your friend a calculator.

yea, somebodies calculator is a little messed up.

 

triton27
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Joined: Thursday, October 21, 2010 - 5:32pm

Peoplevneed to start looking into vehicles and what you get for your money. I have owned Ford (2006)with the 5.4,  Chevy 2500 HD 6.0(2008) and now the one I am happy with a 2010 Dodge ram 1500 with the 5.7. Amazing MPG and power! I drove to WI and per the computer 24mpg at 80mph. My ford was the closest in performance to the dodge. Chevy is riding off there name. Was the worse chevy I have owned and I was always a chevy guy but a buddy talked me into the 2006 ford(good truck) I will not by another chevy for a long time. I did no alterations to the truck and only pulled a 1900 pro v. The thing was in for warranty work every other week including a brand new transmision. I am sure you all will probably say yea right.. take it for what you want... needless to say the truck was gone with 20,000 miles on it.  I have had my Ram for 5 month now and love it.. MPG in town is about 13-14 and highway 21 mpg easily.  I could go on and on about the difference between trucks. One way to look at it is this.. 6.0 produces how much HP and torque? 5.4 produces how much HP and torque? 5.7 produce how much HP and torque?  I would say if your looking for a new vehicle ignore what your buddies say about the vehicles, take them for a test drive and decide for yourself. You can always go with a chevy and have the thing down shifting and rpm's running at 5 grand whenever you pull something. Anyways good luck with whatever you by. AMERICAN MADE AND ASSEMBLED!

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i would never buy a gas vehicle ever again.a diesel way outperforms a gas in mpgs and pulling power.u have to put alittle money in them to get the best performance and 200k-400k out of a motor. i have a 06 cummins with all the goodies on it like a chip,5" inch exhaust,cold air intake,ats 1500hp tranny and torque converter,bigger turbo. up to 75 mph i dont get anything below 23 and puling boats or trailers 16-18. one big thing on diesels with chips u better upgrade other components because there will be failures of trannys or motor damage

muddytrail
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Joined: Sunday, December 16, 2001 - 12:00am

If you want the 8.1 get it.  Other than the mileage you will get (but you know what you will get ball park) you will be happy with the power.  I have to buddies that have them and they are pleased with how they pull.  YOU DO NOT buy a pickup for fuel mileage anyway.  If anyone says so is full of it.  You buy a pickup to do what its intended for.  I have the duramax in my GMC and absolutly love it.  I have almost 180,ooo miles on it and I have had no major problems with it, buy I am pretty anal about maint.  I get about 16-17 mpg unloaded and about 12-13 pulling my 30 ft fifth wheel camper and a 19 foot fiberglass boat behind that.  I do not pull my things 80 mph though.  I normally just run the speed limit.  My father does have to cummins dodge trucks and he has gotton around that 21-23 mark a number of times, but he just runs the speed limit also.  He said his newer 2006 didn't get better mileage until around 30,000 miles on it.  He also has a 95 with about 400,000 on it and it get a consistant 18-20 mpg.  If you are looking at purchasing a pickup that you are going to hang on to for a long time, you might want to try a diesel.  But if not, any of these trucks would be great.  Get what you want!

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Joined: Tuesday, June 9, 2009 - 7:13pm

triton27 Said:
Peoplevneed to start looking into vehicles and what you get for your money. I have owned Ford (2006)with the 5.4,  Chevy 2500 HD 6.0(2008) and now the one I am happy with a 2010 Dodge ram 1500 with the 5.7. Amazing MPG and power! I drove to WI and per the computer 24mpg at 80mph. My ford was the closest in performance to the dodge. Chevy is riding off there name. Was the worse chevy I have owned and I was always a chevy guy but a buddy talked me into the 2006 ford(good truck) I will not by another chevy for a long time. I did no alterations to the truck and only pulled a 1900 pro v. The thing was in for warranty work every other week including a brand new transmision. I am sure you all will probably say yea right.. take it for what you want... needless to say the truck was gone with 20,000 miles on it.  I have had my Ram for 5 month now and love it.. MPG in town is about 13-14 and highway 21 mpg easily.  I could go on and on about the difference between trucks. One way to look at it is this.. 6.0 produces how much HP and torque? 5.4 produces how much HP and torque? 5.7 produce how much HP and torque?  I would say if your looking for a new vehicle ignore what your buddies say about the vehicles, take them for a test drive and decide for yourself. You can always go with a chevy and have the thing down shifting and rpm's running at 5 grand whenever you pull something. Anyways good luck with whatever you by. AMERICAN MADE AND ASSEMBLED!

This just screams wrong.  I have a v6 car that get 35 normal driving. At 80 mph it gets like 27-28. I highly doubt you get 24 at 80 unless you have a hell of a tailwind.

Si vis pacem, para bellum   -   If you seek peace, prepare for war

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scrappy
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I love this topic.  Anyway you look at it we will fight over truck brands thats the Truck Man's Way.  I do believe that if you know someone talk to them or go out and test drive, even get on the internet and do some review look-ups.
I have an 07 chevy 3/4, with the 6, and 6 speed tranny and I must clear this up on the 6 speed.  I love it I bought the truck for what I needed it for pulling my 19 starcraft, a hole different truck with the tow/haul engauged.  I pay a lot of attention to how my truck acts and I investigate what and how it should act, the  6 speed has more gears, short shift position, with the tow haul engaged the rpm's will run higher before shifting, keeping the rpm's up preventing the lagging of the engine (BAD) when pulling, giving you better mid range torque and hp.
I previously owned a 01 chevy 1500hd 6.0 made 16 when I first had it and 14-15 mpg hwy later on and 13 in town its a truck what do you suspect.  Diesel should be bought for those you pull heavy load and pull often.  The price of a diesel is 8,000 to 10,000 more new or used, I also check and thought about getting a diesel, but after the costs and maintenance just wasn't worth it for me.  I can't remember anybody I know owning a truck for more that 150,000 miles gas or diesel, it human nature to have the best/newest, its all about the looks.  The one thing with a diesel that I have found out and think others agree, to sustain the better mileage, they all had to upgrade, exhaust, chips/programmers, injectors, etc.. this cost money so after buying a truck that cost 8,000/10,000 more than a gas engine and putting another 1,000 or more, now you have a very expensive truck that you should keep for a long time and have good maintenance, along with pulling or using the truck for what it is ment for to get your money out of it.
As for info on truck;
Buddies's 2010 ford, nice truck, rides nice 1/2 ton but he love it for pulling short pulls on his boat or camper again 1/2 ton not sure on his mileage. 
Also has a 98/99 ford 3/4 v10 pulls awesome, but bad bad mileage, he never drives it except to pull doubles. 
Cousin's 8.1 average 12mpg average, again the power is awesome, the torgue is unbelievable, my dad rode in it last month and they pulled a 25ft gooseneck loaded with farm equipment and could not believe how much power it had to pull.  I know another guy that sold his 8.1 to get a dodge 06 gas, he said the 8.1 would slip the tires to easily (not doing it on purpose) when pulling is trailer if you didn't have enough weight and so he went to a 3/4 gas dodge.
Ice Fishing buddy
One has a has a 05/06 dodge diesel, asked him how the power was pulling and not pulling and the mileage, he said the average no matter what was 12 mpg but he bought it to pull his 5th wheel and for that he loves it, pulls double i believe.
No upgrades.
Other has a Duramax, I rode in this truck pulling his 18ft dove tail loaded with 2 sleds, crap load of ice fishing equipment, and it pulled great.
Sister's 06 Dodge 3/4 Mega Cab diesel, good power when they bought it, however my brother in law has a programmer put in, and wow what a difference that made power and mileage, to denver and back to montana averaged around 20mpg, that is good for any truck, but again the cost for the diesel and price for performance parts and need for the diesel is a must,  can buy a lot of gas for 8,000 to 10,000 or more.  I think the dodge's gas engines have always had good power but don't have the mileage has a ford or chevy, now the fuel management system makes a truck a big time universal vehicle.  My other brother in law was looking and talking to 2 guys that just bought new chevy's 6.2, 6 speed with fuel management, make 20+ hwy and 13/14 town, over 400hp they pull a boat and what a difference they love it, the good mileage with nice ride and to have the power for pulling when needed or the little pulling a person might do.
All in all, you should buy a truck for what you need, every truck brand has its bad and good parts, and any truck can be a lemon no matter the brand.

triton27
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Joined: Thursday, October 21, 2010 - 5:32pm

Goth Said:

triton27 Said:
Peoplevneed to start looking into vehicles and what you get for your money. I have owned Ford (2006)with the 5.4,  Chevy 2500 HD 6.0(2008) and now the one I am happy with a 2010 Dodge ram 1500 with the 5.7. Amazing MPG and power! I drove to WI and per the computer 24mpg at 80mph. My ford was the closest in performance to the dodge. Chevy is riding off there name. Was the worse chevy I have owned and I was always a chevy guy but a buddy talked me into the 2006 ford(good truck) I will not by another chevy for a long time. I did no alterations to the truck and only pulled a 1900 pro v. The thing was in for warranty work every other week including a brand new transmision. I am sure you all will probably say yea right.. take it for what you want... needless to say the truck was gone with 20,000 miles on it.  I have had my Ram for 5 month now and love it.. MPG in town is about 13-14 and highway 21 mpg easily.  I could go on and on about the difference between trucks. One way to look at it is this.. 6.0 produces how much HP and torque? 5.4 produces how much HP and torque? 5.7 produce how much HP and torque?  I would say if your looking for a new vehicle ignore what your buddies say about the vehicles, take them for a test drive and decide for yourself. You can always go with a chevy and have the thing down shifting and rpm's running at 5 grand whenever you pull something. Anyways good luck with whatever you by. AMERICAN MADE AND ASSEMBLED!

This just screams wrong.  I have a v6 car that get 35 normal driving. At 80 mph it gets like 27-28. I highly doubt you get 24 at 80 unless you have a hell of a tailwind.

You can assume all you want. I own one and know what the truck gets for MPG. I would suggest you maybe test drive one and take it on the highway to see what they actually get for MPG yourseld before assuming. I drove from Bismarck to Dickinson into a 20mph wind head on and managed 19MPG at 75mph(cruise control). If you are rough on the truck it will drink it down. The worst gas milieage I managed with this truck was 12mpg and that was pulling a flat bed loaded with fencing, and I mean a lot of fencing up to pick city. The 24 mpg did not have a tail wind in fact the day I managed that was on a calm day. I would say the average I get on highway is about 21 mpg. I am not on here posting because I have something to gain out of this, I am here posting to let people know there are more trucks out there than Chevy. I believe a lot of people are purchasing Chevy trucks right now becuase "Daddy " had one and that was a good truck. Well I am sorry to say time have changed and my personal view is Chevy is way behind in the times. I am not to familiar with Diesel engines but gas I would say they have a long ways to go.

dannyo
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Joined: Wednesday, March 9, 2011 - 4:24pm

I have a 2003 8.1 in a GMC with Allison and 3.73 axle. If you keep that tach at 2000rpm, approx 68 miles per hour you might squeeze 13.5 per gallon depending on your elevation. I have 58,000 on my truck and have never had an issue with the transmission, or any thing else for that matter. Remember, timely PM's are the secret to any vehicles reliability. The 8.1 has impressive power and is bullet proof.

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Swanson
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Joined: Friday, September 7, 2007 - 12:50pm

I have a dam Durango and it drinks gas like nobodys business, maybe 11mpg


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triton27 Said:

Goth Said:

triton27 Said:
Peoplevneed to start looking into vehicles and what you get for your money. I have owned Ford (2006)with the 5.4,  Chevy 2500 HD 6.0(2008) and now the one I am happy with a 2010 Dodge ram 1500 with the 5.7. Amazing MPG and power! I drove to WI and per the computer 24mpg at 80mph. My ford was the closest in performance to the dodge. Chevy is riding off there name. Was the worse chevy I have owned and I was always a chevy guy but a buddy talked me into the 2006 ford(good truck) I will not by another chevy for a long time. I did no alterations to the truck and only pulled a 1900 pro v. The thing was in for warranty work every other week including a brand new transmision. I am sure you all will probably say yea right.. take it for what you want... needless to say the truck was gone with 20,000 miles on it.  I have had my Ram for 5 month now and love it.. MPG in town is about 13-14 and highway 21 mpg easily.  I could go on and on about the difference between trucks. One way to look at it is this.. 6.0 produces how much HP and torque? 5.4 produces how much HP and torque? 5.7 produce how much HP and torque?  I would say if your looking for a new vehicle ignore what your buddies say about the vehicles, take them for a test drive and decide for yourself. You can always go with a chevy and have the thing down shifting and rpm's running at 5 grand whenever you pull something. Anyways good luck with whatever you by. AMERICAN MADE AND ASSEMBLED!

This just screams wrong.  I have a v6 car that get 35 normal driving. At 80 mph it gets like 27-28. I highly doubt you get 24 at 80 unless you have a hell of a tailwind.

You can assume all you want. I own one and know what the truck gets for MPG. I would suggest you maybe test drive one and take it on the highway to see what they actually get for MPG yourseld before assuming. I drove from Bismarck to Dickinson into a 20mph wind head on and managed 19MPG at 75mph(cruise control). If you are rough on the truck it will drink it down. The worst gas milieage I managed with this truck was 12mpg and that was pulling a flat bed loaded with fencing, and I mean a lot of fencing up to pick city. The 24 mpg did not have a tail wind in fact the day I managed that was on a calm day. I would say the average I get on highway is about 21 mpg. I am not on here posting because I have something to gain out of this, I am here posting to let people know there are more trucks out there than Chevy. I believe a lot of people are purchasing Chevy trucks right now becuase "Daddy " had one and that was a good truck. Well I am sorry to say time have changed and my personal view is Chevy is way behind in the times. I am not to familiar with Diesel engines but gas I would say they have a long ways to go.

Triton,

You must have the most fuel efficient gas pickup ever!  I don't want to seem mean, but your mpg claims are just not possible.  If you drive ANY gas pickup into a 20mph head wind at 75 mph, you are not getting 19 mpg.  I apologize for being direct.

"Diligence is the mother of good luck."

"The constitution only gives people the right to pursue hapiness.  You have to catch it yourself."

"Well done is better than well said."

"Beer is living proof that God loves us and wants us to be happy."

All by:  Benjamin Franklin.

"The solution to any problem - work, love, money, whatever - is to go fishing, and the bigger the problem, the longer the trip should be."

Author: John Gierach

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Captain Ahab
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BTW, even a 4 cyl 2wd short box regular cab compact pickup will not get 19 mpg running into a 20mph headwind @ 75. 

"Diligence is the mother of good luck."

"The constitution only gives people the right to pursue hapiness.  You have to catch it yourself."

"Well done is better than well said."

"Beer is living proof that God loves us and wants us to be happy."

All by:  Benjamin Franklin.

"The solution to any problem - work, love, money, whatever - is to go fishing, and the bigger the problem, the longer the trip should be."

Author: John Gierach

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2011 Ford F-150 5.0 Minot to Minneapolis. Cruse set at the Speed limit. Highway 2 to 29 to 94. 16.5 MPG Winds were out of the north/northeast for the whole ride.

Si vis pacem, para bellum   -   If you seek peace, prepare for war

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257weatherbysmokes
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Joined: Wednesday, December 10, 2003 - 12:00am

8.1 AKA 502 can you say BIG BLOCK  are very very good moters and Allison tran!! What a combo!!   they hold there value!!  Ive been looken for one, for two years just to pricey or beat to sh@!!!   They dont JEL!!! (grin)

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I have to agree with Ahab on this one, there is only so much energy in any fuel.  A pickup, even a modern one is very poor aerodynamically.  The engines are made to produce power, not economy.  The trip computers in any vehicle I have seen is very "optimistic" at worst.  Further many people tend to exaggerate claims of their rig.  Now I'll try to bring some knowledge to the table.

A gas engine works on a proper mix of air to fuel, as far as I know this ratio hasn't changed and is basically 14 parts air to 1 part fuel.  Now any engine will have to sustain higher rpm's to go faster and that means more of the air and fuel to hold that speed.  I know a lot has been done to make vehicles better in the last few decades and they are certainly much better at extracting energy from the fuel, lighter weight, aerodynamic, and probably many other things I don't know. 

That said the best I have personally seen from a pickup worth using for towing, having a gas engine is about 16 mpg unloaded and 10 mpg or so pulling.  A diesel works in a more efficient manner and will do about 30% better than an equivalent gas engine.  If that holds true then about 20 mpg or so for the diesel.  If I understand things right on a diesel, it can run very lean without suffering damage meaning it is not held to the constant 14/1 air fuel ratio of a gas engine.  Modern heavy trucks and the after market chips utilize this fact and allow a diesel to operate on a stingy amount of fuel when the power is not needed and then motivate the intake and fuel metering for big power when needed.  A gas engine is essentially on a constant curve meaning it will produce "x horsepower" at "y rpm". 

Going back to the limit on fuels, there is only so much potential energy in any volume of fuel, no matter the fuel.  All internal combustion engines have a huge amount of energy loss in the form of heat so much of the potential energy is not used for power and is "wasted" to the coolant system.  Of the energy converted from chemical to physical motion there are parasitic losses in the engine internals, drive train, rolling resistance to the ground, drag in the air, etc...  The vehicle itself consumes most of the energy to move itself before ever doing useful work.   There are still a lot more variables to mention too.

Everything above comes to this point.  Engineers and scientist do a good job but physics are hard to trick and rather universal between brands of vehicle.  Accountants, assembly lines, and government regulations all limit the best design bang for the buck.  Market demand will dictate what is made by what will be sold. 

If you have read all this then I would say buy a Cummins diesel.  It's very good at power and economy because the 6 cylinders do a better job than 8.  I have a 96 Powerstroke for pulling duties and the best I can do being light on the throttle is 17 or 18 mpg unloaded at 65.  My little pickup, 93 Ranger with the 4.0 V6 will pull around 20 mpg at 65 mph.  Both of these have manual transmissions. 

Now if I am wrong with anything I've read please correct my ignorance.  I do hope this sheds some light on the issue and we all come back to reality.

Yeah, it's kind of like that.

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fishing farmer
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if your buying a pickup buy what you want dont worry about how mutch  it cost to drive it buy a 3/4 for pulling or buy a suv is my opion

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jtillman Said:
Can a guy really get 25+ mpg with a Diesel and a chip?...boy if so, I made a big mistake trading my SUV for a car to save some money on gas....

It is possible!  I have an 09 cummings 6.7 with the black max, all the deletes, and straight pipe.  During the summer i average 20-22 mpg empty that is town and highway combined.  Pulling it drops to 15-17 mpg.  If i set the cruise at 60 mph it will get up to 27 mph empty.  It is possible.

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riverview
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I have been doing a little research and am looking for a 2nd generation dodge cummings for the power and mileage they can get. And the 12 valve cummings will burn alot more than just diesel.

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The return trip.

2011 Ford F-150 5.0L Minneapolis to Minot 94 to 83. Winds out of the south/southeast the whole way. 16.4 MPG. Cruise set at speed limit +5 

Si vis pacem, para bellum   -   If you seek peace, prepare for war

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taylorman_55
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Joined: Wednesday, February 24, 2010 - 4:00pm

 Goth, thats not too bad of mileage..... how do you like the 5.0 ? Have heard some great things about it, along with the new ecoboost

 

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I get a pretty consistent 16-17 mpg with my 03 chevy 1/2 ton 5.3L.   I drive the speed limit.
If you guys are going to be pulling often why not go with a diesel?

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