Quote:
Originally Posted by drifter
California's highest octane is 91. Should we be using some kinda of octane booster? If so, what is recommended? thanks
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They don't work. The best additive I've found over the years of driving was STPs water remover. I saw difference right away on a port injected 2E 2.0L VW/Audi engine. But that was not in US, and the area I lived in had a crappy fuel for injector engines.
