Nulon Pro-Strength Rear Main Seal Stop Leak is a concentrated formula designed to eliminate rear main oil leaks due to seal shrinkage, hardening and deterioration. Suitable for use in all petrol, LPG and diesel engines. Use this product if your car has any of the following symptoms: Loses or leaks oil, blows blue smoke at start-up, on take-off or when decelerating downhill. Benefits Reduces rear main oil leaks fast Revitalises hardened seals Reduces oil consumption Reduces exhaust smoke Works on crank seals, cam seals and gaskets

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