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hansenp · 10-01-2009, 09:35 PM

Put in 87. From costco last week all was fine Went to a local station today and it started to knock when coming up my steep driveway. Can I get by with 89?

10-01-2009, 09:35 PM	#1
hansenp Drives: 2010 Camaro 2 SS/RS Join Date: Sep 2009 Location: San Francisco, California Posts: 416	What gas do you use? Put in 87. From costco last week all was fine Went to a local station today and it started to knock when coming up my steep driveway. Can I get by with 89?