Project BMW M3 Part 12: Track days
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*In order to keep Project M3 running cleanly and ping-free during hard track testing, I used Sunoco 112-octane leaded race fuel. The motor and turbo generates a lot of heat, and California's junk 91-octane gas was not going to cut it. Sunoco also offers 100-octane street-legal, unleaded gas for high-performance cars. View Related Article
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