Avoiding Pinging with 91 Octane California Gas

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#4 (permalink)

11-27-2015, 11:53 AM

Ron61

Senior Club Cobra Member

Join Date: Dec 2001

Location: Shasta Lake, CA

Cobra Make, Engine:

Posts: 26,618

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I too use the racing gas in one of my cars. I had the compression lowered from 12.5 to 10 but it still pinged. I live in Northern Calif. and we can't get the Sunoco gas up here at all, but Union 76, Shell, and Chevron seem to be the best.

Ron

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