Lube
I bought Klotz Lube at a motorcycle shop. 1 quart--$9. This what all the local bracket racers, that run alky, use. 1 quart will lube 55 gal barrel of methanol. It has Castrol in it. You can go to the drug store and get Castrol, this will also work. If it does not mix (as you say float) ---No good.