MOTUL BOOST AND CLEAN MOTO is a fuel additive for gasoline. It can be used in all types of 2 and 4-stroke motorcycle engines. Its powerful and special formula increases the octane number as well as cleaning carburetors. injectors. valves and combustion chambers. It also cleans and lubricates the entire fuel system. . Also suitable for use with E10 fuels. which has an ethanol content of 10%.