Reduces exhaust smoking and decreases metal-to-metal contact by providing a thick oil cushion. REDUCES OIL BURNING, FIGHTS METAL-TO-METAL CONTACT, HELPS QUIET NOISY VALVES AND FILTERS. Oil burning and exhaust smoking occur when motor oil enters the combustion chamber and is burned along with fuel. This condition, known as oil blow-by, often results when friction and metal-to-metal contact have worn down parts and created gaps between the cylinder walls, piston rings,and valve guide seals. STP Smoke Treatment is specifically designed to reduce these problems.
USAGE FREQUENCY : Between every oil change