KenMasters

iTrader: (10)

If you were to add ethyl alcohol/Ethanol to your already e85 filled gas tank, could you increase your Ethanol content?

ex: Everclear ( alcohol available at a liquor store ) is 95.4% alcohol by volume, Almost pure ethyl-alcohol.

Reasons for my asking;

winter blend fuels knock e85 down to e70 (this could mess w/ a tune)

For someone making the transition to e85, the residual gasoline in the tank would lower the ethanol content.

PVD04

iTrader: (23)

They swith to E70 during winter to help with cold start. If you try bringing it back to E85 you probably wouldn't be able to get the car started.

-Paul

Lucas English

iTrader: (12)

Yes you could but doing it with everclear would cost a ton. I have E98 at the shop which is 2.50 a gal VS the $20+gal for EverClear.

KenMasters

iTrader: (10)

I was throwing the boose out there for example.

Where would one source some pure ethyl-alcohol?

Joehunk

Pure (anhydrous) ethanol is radically expensive and is usually available only from chemical supply outfits such as Sigma-Aldrich. It's going to be a lot more expensive than Everclear. It's actually pretty hard to get pure ethanol. You cannot with simple distillation thanks to a property known as azeotrope. Everclear is pretty close to azeotropic concentration, and anything more than that requires some fancy magic like drying over calcium chloride, etc.