Lubro-Moly MOS2 Anti-Friction Engine Treatment forms a friction and wear reducing “moly film” on all sliding surfaces of the engine. The engine runs smoother, quieter, cooler, and more reliably. Lubro Moly MoS2 Antifriction Engine Treatment provides an extra measure of protection under extreme heat and mechanical load conditions. It is a concentrated MoS2 (Molybdenum disulfide) additive forming a long lasting protective barrier for older engines with marginal oil pressure, but also offers great protection for new car engines. Application: Add to the engine oil at the rate of 3-5% for all gas and diesel engines. Can be mixed with all commercially available engine oils. Simply add one can with your next oil change (one can for 4-6 quart crankcases: 3-5.0% treat ratio). Made in Germany. Comes in a 300ml can.