Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart

Lucas Oil 10278 Engine Oil Stop Leak is a specially formulated blend of Lucas additives and premium base stocks designed to stop seal leaks in engines while revitalizing worn components. This versatile formula works as both a leak stopper and performance enhancer for high-mileage engines.

Key Features:

• Stops seal leaks in engines without using harmful solvents
• Reduces engine noise and oil consumption in worn engines
• Raises oil pressure by filling spaces between worn engine parts
• Extends engine oil life by 50% or more
• Also effective in automatic transmissions, hydrostatic transmissions, and hydraulic systems
• Stops valve seal leaks that cause white smoke on startup
• Compatible with all conventional and synthetic motor oils

Application: Use 20% of system capacity (1 quart of Lucas Engine Oil Stop Leak to 4 quarts of motor oil). For transmissions and hydraulic systems, 10% is typically adequate, though more can be used in severely worn units. For persistent valve seal issues, add one quart with each oil change to maintain effectiveness. Allow several days for the product to fully condition seals and reduce leakage.

Ideal for older, high-mileage engines showing signs of wear such as oil leaks, low oil pressure, excessive oil consumption, or white exhaust smoke on cold starts. This trusted Lucas Oil formula helps extend the life of aging engines and drivetrains without expensive repairs.