Increase MPG

gmcsmoke wrote:

Water-Bug wrote:

gmcsmoke wrote:

chevor wrote:
Drive slower, and highway tires aired way up.

so running a $250 tire at 80 pounds 24/7 is your way of saving money?

There is nothing in the OPs post about saving money. His goal is to increase mpg. Maybe he just wants to drive further between fuel stops.

if that's the only goal then buy a bigger fuel tank.

And how does a bigger tank increase fuel economy? Yes he will get further down the road because he has more available fuel,...but "said mpg," is still "said mpg." I've run chips and programmers in both gas and diesel trucks. Like everyone has said,...I've only seen 1-4 mpg gains, and that's diesel and gas. I've seen my biggest fuel economy gains when I've lowered my speed. I drove my '05 Chevy DRW CC with the Duramax/Allison combo from Phoenix to Dallas back in January. The first tank, I got 15.5 mpg at 80 mph. The second tank, I got 18.6 mpg at 75 mph. I didn't really care after that. Those calculations are hand calculated too, from pump to pump. This truck has a PPE Xcelerator Hot programmer with every kind of bolt on upgrade that you can think of, except a turbo and injectors. I bought the truck new, and never paid attention to the fuel economy. Matter of fact, I paid no attention to it in any of the vehicles that I've owned. My priorities are as followed,...performance first, and fuel economy second. It's all about the speed, and finding the sweet spot for the engine.

the bear II wrote:
The most MPG gain I have seen anyone report is an increase of 5 MPG. The guy spent over $5000.00 to reach that gain. Most folks report a gain of 1 to 2 MPG after spending from $1000 to $2500 (programmers, turbos, banks or other setup).

I'm perfectly happy with the 10 to 12MPG I get with my Duramax versus the 6 MPG I used to get with my old 7.4L Chevy gasser. But that cost me $60,000.

For that kind of money he could have bought a DuraMax, and gotten better mileage and MORE power!!

I'm at 10.5 mpg in town driving, 10 pulling a flat trailer and 9 pulling an enclosed cargo trailer (less with wind). Driving 60mph with a 10 mph tail wind this week I managed 14 mph over a tank and a half of gas. Most of the time on the highway it is 12-13.

The trucks computer controls everything. I can drive as gently as possible and it won't make any difference. I may gain a little mileage swapping out to a less aggressive tire, but that is about it. It is all about physics at this point-if GM could get more out of the truck, they would have done it.

I'm not into programers. #1 how many miles do you have to drive to offset the cost of the programmer. Is the gain in fuel economy enough?

Water-Bug wrote:

gmcsmoke wrote:

chevor wrote:
Drive slower, and highway tires aired way up.

so running a $250 tire at 80 pounds 24/7 is your way of saving money?

There is nothing in the OPs post about saving money. His goal is to increase mpg. Maybe he just wants to drive further between fuel stops.

if that's the only goal then buy a bigger fuel tank.

5:00 traffic is stupid time on the highway.

Hannibal wrote:
Drive like you have no brakes.

It never ceases to amaze me how everyone's in a race to get to the next red light.

gmcsmoke wrote:

chevor wrote:
Drive slower, and highway tires aired way up.

so running a $250 tire at 80 pounds 24/7 is your way of saving money?

There is nothing in the OPs post about saving money. His goal is to increase mpg. Maybe he just wants to drive further between fuel stops.

Drive like you have no brakes. And steady on the loud pedal. This works with an OTR tractor trailer as well as a Prius. I work with a guy that's on and off the throttle in step with his never ending conversation. He gets lousy mileage and his gimmick air filter and programmer do nothing to help it.
Assuming proper maintenance and tire pressure...

I've seen as high as 14.5mpg with my F250 city, 17 interstate and 9.7 towing. Unfortunately for me, I don't have the patience to tow 58~mph so towing mileage is usually 8-8.5 at 65mph.
I average 53mpg with my Pruis at 50-100 miles a day so I'm not too concerned about the F250's mileage towing. Wife drives the F250 16 miles a day. That's my solution to the mileage conundrum.

We got 7.9mpg on the way down to Fort Desoto Park campground this week with a moderate headwind. Worth every penny! :B

Dog Folks wrote:
We gain a full 20% in MPG between driving at 55 versus 62.

That's the only way I know of to get a SIGNIFICANT increase.

Everyone who asks about this should add "Oh, by the way, I still want to tow at 70mph."