Curious about mpg after lift/tire change

[Cookie Monster]

Hi all, new to the site. First some info on the truck,
I recently bought a 2001 1500. V8 magnum 5.2. 2wd. It Is sitting on some 17" Dunlop street tires at the moment and I've worn them down, along with the previous owner. The truck is leveled, no lift. The only thing he really did was the leveling and he has the exhaust cut right after the cab, with turndowns.

I got an offer from a friend I know and trust and he has 4 16" mud tires (I don't know brand or width) with barely any wear or tear on them, who's gonna sell em to me for 100$ for all four... These tired are 5-600 and I'm gonna take that damn deal haha. All I know is that the tires are bigger than mine, the rim is smaller, but the tire is definetly bigger. I think he said they were 32 from outside to outside.

Now, for my questions. We are going to lift my truck, not sure if suspension or body. Planning on 2-3 inches, and a tire upsize. I believe my tires are 30 from outside to outside. (Sorry for my terminology, I know basics of vehicular things but I am young and still learning). I've estimated I get about 15mpg. How much will my mpg decrease with the lift and tires? I have the money for gas I just am trying to get an estimate.
Thanks for any hell.

 

[Johnn123]

Do a 3" body lift, cheapest and easiest. dont think there is a 3" suspension lift for a 2wd. You should be at about 5" of lift after a 3" body lift.Tire size we usually go by what the size printed on it says. Dont try to mount those 16's on your 17" rims. Set of stock 16's you could prob find locally for around $50-$100. You will lose mpg depending on a lot of factors, what size tires, your diff gear ratio, how you drive, even where you drive. No way to say for certain but ill guess between 11mpg-13mpg. Maybe. Dont expect mileage out of it lifted.

 

[Csanders1992]

I'm not sure on the lifted to tire size ratio on these trucks. But I do know when it comes to lifted trucks gas milage will decrease. Sometimes a lot. Like most say, after you lift it's not miles per gallon, it's smiles per gallon


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[BBartow]

As John said there's other factors involved, most important being gear ratio and how you drive. I get better MPG with my 35s than I did when I ran 32s because I have 488 gears. If you have the proper ratio for the tire size and keep your foot out of it you can easily match the MPG you used to get. That is the generic rule. In your case, you're stepping up to a 32" tire from a 30" tire. Most likely you have the stock 3.55 gear ratio and stepping up to 3.92s or 4.10s to match your tire size is a fair bit of money. You can get away with 32s on stock gears without hurting the tranny, but you will experience a small dip in MPG.