02-07-2010, 10:29 PM
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#3 (permalink)
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A True Z Fanatic
Join Date: May 2009
Location: Ontario, Canada
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Quote:
Originally Posted by m4a1mustang
Our engines are designed to run on premium fuel. The higher octane rating means a higher resistance to premature detonation. I run 93, but some states offer only 91 as the highest octane and that will work.
If for some reason you have to put 87 in the car, go very easy on the revs as you don't want any pinging, and refill with high octane as soon as possible.
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Is it not true that you would want to use 91 for pure performance though??? I know 93 is better on the engine however my understand is that the lower octane you CAN use in your car the more performance you will receive from the engine.
I could be totally wrong
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