I personally use Motorkote
is a synthetic that molecularly coats all metal surfaces. It is specifically formulated for hard working engines. Works with all brands of synthetic and petroleum based oils. MOTORKOTE does NOT blend with the base fluid (oil). When an additive blends with the base oil it automatically alters the specified S.A.E. and viscosity rating of that fluid. That is not good. It is also hard to protect your engine when your additive and oil are sitting in the oil pan after leaving your vehicle parked overnight. MOTORKOTE is different because it uses that base fluid as a host or carrier to get to the metal. Once it gets to the metal it chemically bonds to the metal drastically reducing friction. This is one of the reasons you only need to add MOTORKOTE once every 4th oil change.
Eliminates wear at engine start-up. 75% of wear occurs when you start that engine.
Extends the life of your oil
Extends the life of your engine
Reduces operating temperatures
Increases fuel efficiency. Some MOTORKOTE users report up to a 12% increase in fuel economy
Boosts horsepower and compression for improved performance
Ideal for motorcycles, ATV’s, and lawn/farm equipment
MOTORKOTE can also be added to your pumpkins (differentials), transmission and power steering. MOTORKOTE contains no solids like Teflon, molybdenum or graphite or any other harmful substraits. MOTORKOTE does not void manufacture warranties. Application Amount: Add 2 ounces of MOTORKOTE per quart of oil. No fill allowance is required.