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Fuel Mileage on your lifted truck


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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.

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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.

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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.....

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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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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.

 

Sent from Motorola Droid Turbo

 

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

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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.

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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.

 

Sent from my SM-G900P using Tapatalk

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