What Is A 4 Mix Engine?
What Is A 4 Mix Engine? Ultimately STIHL 4-MIX combines all the advantages of two different engine principles: two-stroke and four-stroke. … It is the amount of movement of the piston before combustion that determines if it is a four-stroke (2 up, 2 down movements) or two-stroke (1 up, 1 down). What is a 4-mix