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bwdz · 08-19-2017, 03:42 AM

Higher octane is only necessary if you raised your compression, added boost or advanced your timing so much that your engine is detonating. Other than those scenarios your car runs worse an any octane higher than is necessary for it.

08-19-2017, 03:42 AM	#2
bwdz Registered User Join Date: May 2016 Location: Northville, MI Posts: 249	Higher octane is only necessary if you raised your compression, added boost or advanced your timing so much that your engine is detonating. Other than those scenarios your car runs worse an any octane higher than is necessary for it.