The functioning of the STIHL 2-MIX engine

In the stratified charge system, a fuel-free cushion of air is inserted between the burnt charge in the combustion chamber and the fresh charge in the crankcase. This cushion reduces the fuel-ladden exhaust which means less impact for man and nature. More information is available on our website: http://www.stihl.com/2-mix-technology-economical-and-with-good-lugging-power.aspx