Fuel Mileage on your lifted truck

EnterSandman · November 24, 2015

I'm looking at putting a 6" BDS lift and 35 or 37in tires and would like to know what everyone else was getting mpg wise with their 6.0L.

Thanks,

Jim80 · November 24, 2015

I changed my 245/75R17 to 285/70R17 (basically 33's) and had the truck leveled, and I would say I lost about 45 miles to a tank of gas......if that helps a bit.

KMGZ400 · November 24, 2015

You will definitely loose 1-3 mpg with that setup maybe more with 37's.. Would def stick with 35s

EnterSandman · November 24, 2015

Thanks guys, I only see 15mpg on good day and the truck is about to become my daily driver.

LongrangeLauber · November 24, 2015

Thanks guys, I only see 15mpg on good day and the truck is about to become my daily driver.

For a DD I wouldn't exceed 33's tbh from past experience

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sahls01gmc · November 24, 2015

For a DD, I'd get a car. The fuel mileage will pay for itself in about a year. My DD gets 30mpg's.

EnterSandman · November 24, 2015

For a DD, I'd get a car. The fuel mileage will pay for itself in about a year. My DD gets 30mpg's.

I have a car and my 16y/o daughter is taking it. The wife has the Yukon XL Denali and I'm getting the '15 2500 that just sits in the driveway at this time.

sahls01gmc · November 24, 2015

I have a car and my 16y/o daughter is taking it. The wife has the Yukon XL Denali and I'm getting the '15 2500 that just sits in the driveway at this time.

Doh! I only get to drive my DD because my daughter is 11! I have about the exact same rides as you, I'll be in your shoes soon I imagine. Oh yeah, I have 2 other daughters after this one.....

Silverado4x4 · November 25, 2015

For a DD, I'd get a car. The fuel mileage will pay for itself in about a year. My DD gets 30mpg's.

The price you pay for the car, extra insurance, up keep and fuel for the car will take you many many years to pay for itself for the difference in fuel mileage.

Stevens03 · November 25, 2015

Regrearing and being tuned for larger tires does get you better mileage. My 03 BB tuned with 6" lift and 35" tires still got 19-20mpg highway and 16-17 mpg in town.

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becker87 · November 25, 2015

Regrearing and being tuned for larger tires does get you better mileage. My 03 BB tuned with 6" lift and 35" tires still got 19-20mpg highway and 16-17 mpg in town.

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Your '03 6.0L with a 6 inch lift got 20 MPG highway? Dam, that is mighty impressive.

SMiller · November 25, 2015

Your '03 6.0L with a 6 inch lift got 20 MPG highway? Dam, that is mighty impressive.

Lmao, my bone stock on 265 tires 6.0 gets 10mpg and my new bone stock 6.0 gets 13mpg.

What a joke

Stevens03 · November 25, 2015

My 03 was a 5.3l but my 07 vmax got nearly the same mileage but wasn't lifted other then a leveling kit.

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Big Whiskey · November 25, 2015

Thanks guys, I only see 15mpg on good day and the truck is about to become my daily driver.

Then don't lift it. You can probably expect 10-12 mpg with a 6" and 35's. If you want a better stance, then go with a leveling kit and a more modest tire. Something like 305/55/20, 295/60/20, 275/65/20, 275/70/18, 295/70/18, 295/70/17, 285/75/17, etc. will probably only lose 1-2 mpg.

crafferty · November 25, 2015

I wouldn't expect great mileage out of the 6.0 even with a tune and regear. That engine is meant to be a workhorse for the HD lineup of trucks and MPG's are a clear after thought. With that being said my 6.2L with a 6" bds lift and 35's averages 11.2 to 11.3 mpg in town and 16.5 mpg on the highway. Unfortunately for me there is no way to regear my truck yet. But I also only commute 10 miles a day.

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