Originally Posted by ans2k
i mean the gain from 87to 89 is minimal, why not 93? but you are right why do it anyways? lol
Because whatever performance and mileage gains will be offset by the price of the tune (which is not even available) and the higher octane gas. Screw that I work in an environmental analytical lab, my car is going to run on a mix of isopropanol, methanol, and ethanol!