After time, engine oil seals tend to dry out and shrink. Bar's Leaks revitalizes these seals and makes them soft and pliable again.

Yes, Bar's Leaks is one of the only engine oil stop leaks that is compatible with all petroleum based oils, including synthetics.

Our E10L (15.5 oz.) is designed for one bottle to be installed in a standard passenger car or light truck. For larger systems, use 1 bottle for every six quarts of oil.

No. Unlike our cooling system product, Bar's Leaks Engine Oil Stop Leak has no particles to plug the leak, it works chemically to stop leaks in gaskets and seals.

After time, transmission seals tend to dry out and shrink. Bar's Leaks revitalizes these seals and makes them soft and pliable again.

Yes, Bar's Leaks Jack Oil Stop Leak is compatible with all petroleum based, mineral oil, and synthetic fluids.

No. Unlike our cooling system product, Bar's Leaks Transmission Stop Leak has no particles to plug the leak, it works chemically to stop leaks in gaskets and seals.

After time, jack seals and o-rings tend to dry out and shrink. Bar's Leaks revitalizes these seals and o-rings and makes them soft and pliable again.

Yes, Bar's Leaks is one of the only Power Steering Stop Leaks that is compatible with all petroleum based, mineral oil, and synthetic fluids. This includes all domestic, import and heavy duty power steering applications.

Yes, you can use this product to help stop leaks in a manual transmission as long as it uses an automatic type transmission fluid. Use ? the bottle for most applications.

The seal restorer additive restores seal size, flexibility and elasticity lost due to engine heat, age and high mileage. The seal polymer works by building a polymeric film around the rear main seal and also filling in any groove worn into the crankshaft by the seal.

After time, power steering seals tend to dry out and shrink. Bar's Leaks Power Steering Stop Leak revitalizes these seals and makes them soft and pliable again.

Yes Bar's Leaks is compatible with ALL brands of antifreeze including conventional green or blue (silicate-based) and extended life red/orange or yellow (OAT/HOAT) coolant. Once installed, the Bar's Leaks particles shrink up to 15 percent. On an external leak, the tiny particles flow to the point of the leak. They then collect at the outside of the seepage and build inward.

Yes, Bar's Leaks is one of the only transmission stop leaks that is compatible with all petroleum-based transmission fluids including synthetics.

Most Bar's Leaks products are compatible with all types of antifreeze. This includes the liquid Radiator Stop Leak p/n R6, C16; Pelletized Stop Leak p/n PLT11; Liquid Aluminum Stop Leak p/n 1185; tablet p/n HDC, J120 and powder stop leak p/n G12BP, 1175. These products are specifically designed to be directly added to the cooling system without having to flush out the antifreeze.