MPG improved with heavier tires???
Our F150 came with the stock P rated, SR-A Wranglers. I didn't think they were as bad as most people claim, but if I needed new tires, why not try to eek out some improvement? So I debated going w...
Forum Discussion
I'm going to assume here that your F-150 came with 275/65R-18 since its 4wd and looks like it has the 18in wheels in your profile picture. On my 2010 F-150 2wd I had 265/60R-18 michelins that were about 30.5 inches in diameter and i replaced them with michelin LTX M/S2 LT275/65R-18 that were 32.1 inches in diameter. These were labeled by michelin as a low rolling resistance tire. After I adjusted my speedo for the larger tires I was still able to get 19.5mpg hand calc. hwy milage. So, i would believe it if you were able to pick up a few mpg on the highway with the michelins. They are a great hwy tire with great wet and snow traction.
