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Old 08-09-2013, 03:30 PM   #58 (permalink)
RedDevil
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Quote:
Originally Posted by Occasionally6 View Post
The chemical make up of the fuel would be interesting to know. With water in the mix (literally and figuratively), what is in the fuel to avoid corrosion and phase separation?
I'm no expert on this, but I've read that pure ethanol is very aggressive on aluminum and other alloys, while even just 1 % of water would stop that, and a higher water content could even de-oxidize it (iirc).
The effect is the same in ethanol/gasoline blends, as the gasoline is pretty much inert to the alloy.

We're talking about a 85% gas / 14.4% ethanol / 0.6% water mixture over here. So 15% of 'wet' ethanol.

It is hard to find anything on the subject that's not written in Dutch, but here goes. To make matters worse, HE.15 happens to be some kind of aluminum alloy code.
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