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Oil Additives

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Engine Stop Leak

STP Engine Stop Leak is formulated with a special agent to renew polymer seals and gaskets damaged by the heat of normal engine operation, which can otherwise result in oil leaks and expensive mechanical work.

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Related Advice

How to Check your Oil

STP® Oil Treatment helps protect against sludge forming.   Check out the video on the left for a demonstration of [...]

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STP Sponsors AF CORSE - FERRARI F458

International motorsport is once again the focus for STP through an alliance with the benchmark Italian AF Corse team, and [...]

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