Quote:

You can pick up a left over 55 gallon drum at the track and a hand pump for $15. I filled my drum up when prices bottomed out in October. It wasn't quite E85 (tested 78) but I've heard you can add a couple gallons of Methanol to get it back to E85. Has anyone tried this?


Just remember, a mix of methanol, ethanol, and gasoline will have a different stoichiometric ratio than real E85 (85% ethanol and 15% gasoline). This means the optimum air/fuel mixture is different for the two blends.


Stoichiometric ratio:
Gasoline 14.7
Methanol 6.4
Ethanol 9.0

E85 9.76
Mixing in methanol to bring the total alcohols up to 85% will have a lower A/F mixture then 9.76 (ie need more fuel volume)