Tater Schuld wrote:
seems odd, isn't ethanol/methanol the main ingredient in gas deicer?

Yes. But you don't fill your tank with 85% ethanol and 15% gasoline.
Just a few ounces of ethanol every now and then to emulsify any water,
if you think you might have some. At those very low concentrations
ethanol won't be a problem. However 85% is a whole nuther issue.

Regards,

-Doug