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What was the highest octane rating for gasoline in the late 1990s? Do (non-sport) cars that were made then need a gasoline above 95 octanes? - Quora
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The Ultimate Guide to Fuel and Octane Ratings — Auto Expert by John Cadogan - save thousands on your next new car!
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Bad' ethanol forced on motorcycles - webBikeWorld
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All New Honda Civic 2022 - Caution "91RON HI OCTANE" required for 1.5Turbo. A lot of people are questioning that Honda has mentioned Civic to run on regular fuel but now they
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Why are octane levels of US gas so much lower than the rest of the world (e.g. Asia where octane levels are ~97/98/99)? - Quora
