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Scott H in Wheaton · 09-04-2015, 07:55 AM

I think a lot of the average driver believing in higher octane comes from the old "racing Gas" at 100 octane or better.
I mean, if a race car uses it to go faster it must make my car go faster too, right?
They don't understand the race engine needs the higher octane because of the 12:1 or 13:1 compression ratios.

09-04-2015, 07:55 AM	#3
Scott H in Wheaton Senior Member Join Date: Dec 2012 Location: Wheaton, IL near Chicago Posts: 861	Re: Regular or Premium gas? I think a lot of the average driver believing in higher octane comes from the old "racing Gas" at 100 octane or better. I mean, if a race car uses it to go faster it must make my car go faster too, right? They don't understand the race engine needs the higher octane because of the 12:1 or 13:1 compression ratios.