Will it hurt my car if I burn about 3/4 of a tank of 89 octane after i install the tune. I have installed the Diablo tune already and have started the car a couple of times but have not yet driven it. Im waiting for winter to be over before i take it out. Should i reinstall the factory tune untill i burn off the tank and get 93 or will i be ok.

 

You'll be fine.....if you feel a bit scared go to the gas station and get a octane booster

 

burn off your 89. its not going to hurt anything...