unless they started to mix ethanol in the 98 without telling us
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unless they started to mix ethanol in the 98 without telling us
In case you don't know: the difference between the rating is how much energy it release when combusted! Therefor 98 octane releases more than your standard 92 octane (or whatever it is) getting better performance. the higher octanes fuels can't be combusted as easily at low pressures ( when the piston is coming up) therefor preventing preignition in the engine (or pinging)
unless i m wrong fuel usually come in 91 octane, 95 octane, 98 octane. and 100 (with ethanol) octane. overseas has 105 and 110 octane aswell i think