B B Bmwbmwbmw Jun 21, 2010 I have a 2009 jk 3.8 with 373 gears i have 35 in tires and gas milage dropped from 17 to 13mpg would 513 gears help gas milage?
I have a 2009 jk 3.8 with 373 gears i have 35 in tires and gas milage dropped from 17 to 13mpg would 513 gears help gas milage?
