2015 Ram 1500, 5.7, 8 speed, 3.21 rear end. Ran 87 octane for 3000 miles since I bought it used. Last weekend I switched to 89 octane and my mileage went up over 4 MPG highway. More than pays for the extra cost.
Check out
https://m.tirerack.com/content/tirerack/mobile/en/homepage.html
I've used it to find the best tire for my usage and then went to local dealers to get the best price, mounted.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.