Quote:
Originally Posted by Alex
This may be correct (10% ethanol), but the rating at the pump is the end result. I.E. 85 doesn't mean a "true 87" because of ethanol content. AFAIK, the 85 (RON + MON / 2) is the actual rating of that gasoline, which takes into account whatever was used to get the octane rating to that particular measurement.
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That's supposed to be correct. Whatever the sticker says is what it's supposed to be.