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Stop Leak


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Fluid leaks are often be a sign of problems that should be taken care of. Sometimes a small leak can be cured by a stop leak product - if you use a stop leak product, be sure to check your fluid levels often as it might stop leaking, not because the leak was fixed, but because you ran out of fluid!
Technology Spotlight
CRC Industries

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CRC Industries is a worldwide leader in production of specialty chemicals serving the automotive markets. This Company's stop leak restores smooth shifting and eliminates leaks and conditions seals.

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AGS

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Since 1931, AGS has been producing unique stick lubricants and has become the world's leading manufacturer. The STOP Oil Leaks helps restore the original sealing ability of brittle engine seals and is easy to pour and use.

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Bar's Products

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Founded in 1947, Bar's Leaks discovered and patented RHIZEX to stop leaks. With this unique ingredient, the stop leak made by this Company has millions of tiny particles to permanently seal leaks in plastic, aluminum and metal radiators.

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Champion

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Champion Brands, a division of Federal-Mogul, has been known for producing specialty lubricants since 1956. The Company's stop leak is good for a quick leak repair and claims to not clog or damage the cooling system.

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Gold Eagle

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Gold Eagle has been in the business since 1932 and produces innovative automotive chemicals. The Radiator Stop Leak is safe for all metal, plastic, and rubber cooling systems and is guaranteed by the Company to work.

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Gum Out

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Gum Out, since 1945, has been producing comprehensive products for any type of car, truck, or flex-fuel vehicle. The Oil Treatment with Stop Leak made by this Company not only prevents leaks but also provides better engine protection in high-mileage vehicles.

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Lucas Oil

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Founded in 1989, Lucas Oil manufactures and distributes automotive oil, additives, and lubricants. The Lucas Engine Oil Stop Leak reduces engine noise and oil consumption while also renewing worn seals.

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STP

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STP has produced car care products since 1954 and is a large sponsor to racing. The STP Engine Stop Leak claims to stop all minor leaks and rejuvenates seals and gaskets in your car.

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