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99b4c · 10-16-2008, 09:57 PM

Both my GM cars say premium fuel and I only use 87, my Camaro has 140k and GTP 125k. No problems, performance or mileage. I will use 87 in my new SS, the computer will adjust.

10-16-2008, 09:57 PM	#20
99b4c Drives: 89 RS/99 GTP/1SS soon Join Date: May 2007 Location: Chicago/Phoenix Posts: 238	Both my GM cars say premium fuel and I only use 87, my Camaro has 140k and GTP 125k. No problems, performance or mileage. I will use 87 in my new SS, the computer will adjust.