I've done dyno testing comparing octane, and my findings support the octane needs of a rotary at 87. I have not, however tried any ethanol but, rotaries are known to run on kerosene, so.....
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I've done dyno testing comparing octane, and my findings support the octane needs of a rotary at 87. I have not, however tried any ethanol but, rotaries are known to run on kerosene, so.....
Jake Gulick
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High Octane for High Compression Only
I thought I saw somewhere that 85 is even better. The last time I rode out to Sturgis many of the "regular unleaded" pumps dispensed 85 octane.
Not good when your overbuilt Harley drinks 93+
There was one brand of gas station that had 95.
The engine ran so well I was sad when that tank ran out.
Tom Sprecher
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