Originally Posted by
LS1Fever
As far as your gas mileage goes, there could be several reasons why you are getting shitty mileage. You timing could be off. You may have boost leaks. Your car is not tuned and could be running too rich. The reasons go on and on.
John I think that his car is pulling a great amount of timing running 89 octane. Which in terms will make your car seem rich. As you stated he needs to put 93 only or better in his tank.
I know on the fuel door of the car. It says premium only.... Anyone have a clue what that means? From the sounds of it I think there are a few people who dont know what that means..