10 oz Bottle of Lubegard Bio-Tech Engine Protectant Motor oil change Treatment Additive LUBEGARD's Bio-Tech Engine Oil Protectant saves oil and fuel, optimizes engine horsepower and performance, protects and extends oil life up to 30%, improves fuel economy by reducing friction in your engine, reduces wear on metal components, thus increasing part life, improves anti-friction and anti-wear properties of ALL major oil brands to meet requirements of ALL vehicles, including older and high performance models, eliminates lifter and other objectionable noise on start-up, especially in cold weather, ensures smoother running engines, reduces hot engine oil temperatures, blends with all motor oils currently produced: Including- API; SL, SD, SM, SJ, SJ/EC, CG-4, CH-4, SE, SF, SG, SI, CC, CD, CE, and, CF motor oils. Helps reduce smoking by restoring flexibility to valve stem seals for improved sealing, also providing outstanding upper cylinder lubricity as it frees up sticking rings, inhibits oixidation and extends engine oil life, also use to extend the life of small 4 cycle engines such as; lawn maintenance equipment, motorcycles, snow mobiles, generators, etc.