I just did a search on E10 quality and found
this site.
And it all but starts with:
Quote:
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Originally Posted by fuel-testers.com
... E10 gas (10 % ethanol) that has phase separated from water absorption, will have a substantial drop in octane of 2 to 4 points.
E.G. After water contamination has occurred, a gasoline purchased with 87 octane will drop to about 83 to 84.
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That was NOT what I expected. After all, they sell hydrated ethanol blends over here and AFAICT it does not hurt fuel economy; in fact, BTU wise, my economy is better than with regular straight gas. Volume of exhaust gas versus BTU, blah. It runs colder but same volume or slightly better even.
Despite that, and its shaky math and grammar, I will not dismiss it and would like to draw your attention to it.
They sell fuel test kits and provide a wealth of information, backed with facts or not.
Might be interesting for those who want to sing praise or damnation on ethanol blend fuel.
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
lifetime FE over 0.2 Gigameter or 0.13 Megamile.
For confirmation go to people just like you.
For education go to people unlike yourself.