Motul 800 was specially formulated for road and off road racing Grand Prix Teams. Motul 800 is 100% Ester synthetic. This Ester base oil has excellent film strength that won't break down under high load conditions, this helps enhances engine output. Motul 800 was designed to work with modern power valve 2 stroke engines providing these valves with a coating that wont burn to carbon and cause valves to seize. This is one of the best 2 stroke lubricants around and is used by road and offroad races all over the world. Use as a pre mix 40 or 50 to 1.