my eat chip bumped mpg up 1-2, i haven't really noticed a difference on intown mileage after changing from 3.91 to 4.27 (no road trip yet), my interstate mileage changes oddly and haven't been able to figure out why, ill make one 2500 mile round trip and avarage 25 with a best one tank run of 27.5 (all time best)and the next trip over the same roads with about the same amount of crap in the car and avarage 22 with a best of 23.5, all on a recent tune up and fresh 02 sensor. mabey they are ****ing with the formula of the gas or something
all america wants is cold beer warm cat and a place to take a poop with a door on it