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05-05-2003, 02:50 PM

Why would higher octane gas keep your engine cleaner? Or do you just mean that mfg put more additives in the "premium" product?

91 doesn't combust as easily as 87, so gas mileage would go down a little.

05-05-2003, 02:50 PM	#3
Mushroom Posts: n/a	Why would higher octane gas keep your engine cleaner? Or do you just mean that mfg put more additives in the "premium" product? 91 doesn't combust as easily as 87, so gas mileage would go down a little.