Polytron Metal Treatment Concentrate Oil Additive (MTC) 1/2 Qt (16oz/473ml) Bottle - Military Industrial Grade For use in automotive, marine, industrial engine (gas, diesel, marine, 2-stroke), transmission, differential, steering pump, gearbox, and other suitable equipment; compatible with all mineral and synthetic motor oils. DIRECTION: General application rule: add 10% by volume or 5% for automatic transmission. For a conventional engine (up to 6 Qt oil capacity), apply Polytron MTC during oil change: fill the sump with motor oil of your choice  Qt less than specified, then add  Qt bottle of MTC. Scientific breakthrough Polytron Metal Treatment Concentrate (MTC) treats the metal surfaces, not oil; reduces friction significantly. Polytron does not contain any solid particles (i.e. PTFE, Zinc, etc) and is not viscosity modifier. Originally developed for military/government applications Eliminates engine wear up to 95%; may increase engine life span by 200-300%; engine may be protected in the event of oil or coolant loss by adding 10% by volume. Contributes to cleaner emissions, reduced engine/equipment operating temperature, improved performance  power, torque, fuel (mpg) and oil economy Keeps engine totally clean of any deposit build-up and may considerably extend oil change intervals 300-700%; protection against extreme temperatures, dirt, and moisture