I always run premium. I get better mileage and the car just runs and performs better. If you pay .10 per gallon more and have a 12 gallon tank that's $1.20 more per tank. Well worth it.
And if you don't have it already, get the Injected Tuner!
2012 Focus SE Hatch 5 MT - Injen Intake, eFocus RMM, FSWerks Stealth Exhaust, Steeda RSB, Mobil-1 0w-20, Injected 91 TUNED!
Last edited by ProjectCommuter; 09-29-2013 at 12:40 PM.
Reason: to add