I've used MMO in my gas for many years in everything from my lawnmower to my outboards. I've never, ever had to re-build an engine. Some cars went 250K and I sold them running. I won't use it as an oil additive. I use it in my gas at every fill. A mechanic friend of mine told me to use it years ago and I've never had engine problems so I keep using. I'm not sure if it helps but it sure doesn't hurt. With the new methanol gas blends and oxygenated gasolines I think a cap full in each tank will help lubricate valves and cylinders. Kinda like adding oil to gas for a 2 stroke but I only add a tiny bit.
Last edited by Fishercat; 04/08/2007 4:21 PM.
