drive at 65. the mpg drop from 65 to 75 is substantial. I can get 20mpg min at 65 with my stock truck on 22s.
get to 75 and its all out the window down to 15-16ish
bump, if you message me and you're from PSA please say so. I'm much shorter to the common rabble on craigslist
https://houston.craigslist.org/wto/d/f250-wheels-and-tires/6656713420.html