Lucas Oil Engine Treatment/Additive is a heavy-duty oil stabilizer designed to control noise, heat, and wear in manual transmissions and differentials. This powerful formula eliminates dry starts and reduces friction, heat, and wear in any type of engine. It enhances motor oils by increasing lubricity, which helps reduce oil consumption and operating temperatures, leading to improved power and better miles per gallon. When used in gear oil, it helps stop leaks, lowers operating temperatures, and extends the life of the gear oil. This additive safely blends with all automotive lubricants, including synthetics, AFT, and mineral oils, making it a versatile choice for engine maintenance. The product comes in a convenient quart-sized bottle for easy application. Model Number: LUCA10001