Formula K2 is a very high performance 100 percent synthetic 2-cycle lubricant utilizing 2000 centistoke esters along with special additives to achieve outstanding levels of protection and cleanliness. Friction and wear, ring sticking and exhaust tract (power valve) carbon are virtually eliminated. Also provides higher levels of rust and corrosion protection. Formula K2 is ideally suited as a premix with pump or race gasoline in virtually all high performance and racing 2-cycle engines. High RPM Racing Formula.