How fuel stabilizers work...or not

Gdetrailer wrote:


Pouring anything over 87 in any unmodified lawn mower style air cooled engine is a waste of your money and potentially damaging to it.

Running a higher octane than required won't damage an engine. It just wastes your money. If its not knocking on 87 there's no need to go higher.


As for ethanol, just don't buy more than you'll burn in a month. fill up the boat/rv with rec fuel on the last tank of the year and you'll be fine.