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Bar's Leak lubricant is designed to be fast, effective, affordable tools for keep your car in tip-top condition and out on the road. This product protects aluminum, copper, iron and all other parts of the cooling system to help prevent the formation of rust and corrosion. The water-soluble oil formula lubricates the thermostat and the water pump seal. It is compatible with ALL brands of antifreeze and is a definite must-use if you only run water in the cooling system. This doubly applies for racing applications.
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