Just curious if anyone has experienced any differences in premium vs. regular fuel.
Which octane fuel are you running?
4stroker
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Only premium in my rod.
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sgtrage said:
Right now I'm using MDO(marine diesel oil).
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Why not ? Is that the one with ethanol added ?mc 88 said:
Tend to use 98 from Caltex.
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93 Premium for me.. The warmer climates (closer to sea level) should have a higher octane premium whereas when you go north (like Utah), the premium has a lower octane.. Hard to believe CA (as posted above) would have 91 octane.. The higher the octane, the slower the burn which is needed to avoid detonation in higher compression/performance engines. If you have modified your engine to have higher compression ratios, you would want to put race fuel in it with even higher octane levels..
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