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SIK07GTSTANG · 03-30-2009, 11:35 PM

The only time you'd need to run premium is if you change the tune to a 93 octane b/c of an induction change. If you're running the factory tune then paying for the more expensive gas is a waste. Essentially, regular gas will do fine.

03-30-2009, 11:35 PM	#2
SIK07GTSTANG Team Fordpower Drives: 2007 Mustang GT Join Date: Dec 2008 Location: Purcellville, VA Posts: 344 View My Garage	The only time you'd need to run premium is if you change the tune to a 93 octane b/c of an induction change. If you're running the factory tune then paying for the more expensive gas is a waste. Essentially, regular gas will do fine.