tried it in the 77 lean burn 2-3 mpg better. I'm thiking it cools the fuel charge going thru the venturis on the carb. also pulls out water in the fuel. Haven't tried it in my FI honda but i,m going too.
I use the 1 oz per 10 gallons. I add 1 oz to a gallon jug then dump it into the tank and add the other 9 gallons. Dumping straight i'd agree it evaporate before it his the bottom of the neck.
