Originally Posted by Aragost
Hey guys, quick question as I am trying to decide on what to do to my '11 F150 SCREW 3.7 2WD. Currently I have the stock 255/65/17 tires and wanted to upgrade to something that would fill the wheel-well out a lot more. I plan on doing a leveling kit of some sort, but If I get a pair of 20" rims and P275/55R20 (off of a FX4 F150) would that give me a big hit in MPG? I was always planning on doing something more aggressive but after reading every page of this thread today, catching up on what others have done, I read that a lot of set ups cause the MPG to go down quite a bit. Honestly I don't know much about "tires" is why I'm asking. Thanks!!!
Since 275/55/20 is a stock size they use on f150s I imagine you will have little to no change to MPG. I wouldn't even level it if just going with that size.
I have 275/60/20 (stock width and about 33" tall) Toyo at2 and a 1.5" Autospring level. My mileage may have decreased by .5 - 1 tops.