Lucas heavy-duty oil stabilizer controls noise, heat, and wear in manual transmissions and differentials. Formulated to eliminate dry starts and reduce friction, heat, and wear in any type of engine. Allows motor oils a higher degree of lubricity which reduces oil consumption and operating temperatures to increase power and miles per gallon. Use in gear oil to stop leaks, and reduce operating temperatures to increase power and miles per gallon. Use in gear oil to stop leaks, reduce operating temperatures, and increase the life of the gear oil. Safely blends with all other automotive lubricants, even synthetics. AFT and mineral oil. Quart.