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crap gas - low octane
After a drive Sunday in my 02 C4S tank was very empty, gassed up with 92 octane. After about a mile in slow congestion it started pinging. I want to boost the octane of this tank. Any known product that works? I always have Toluene used as a thinner for a glue in my work. Many discussions online, good and bad about using it.
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