10 Best Oil Additives To Stop Leaks

Updated February 2025

Top Choice

ATP AT-205 Re-Seal Stops Leaks, 8 Ounce Bottle

9.9

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Lucas 10008 Power Steering Stop Leak - 12 oz

9.4

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Lucas Oil 10278 Engine Oil, 1. quarts

9.2

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Bar's Leaks 1040 Grey Pack of 1 Concentrated Rear Main Seal Repair-16.9 oz

8.9

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Lucas Oil 10279 Stop Leak, 1. gallons

8.6

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Permatex 82099 Spray Sealant, 9 oz

8.2

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Liqui Moly 2020 Motor Oil Saver - 300 ml

8.2

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Lucas Oil 10011 Power Steering Stop Leak, 1. quarts

7.7

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Bardahl 3119 Gear Oil Additive Plus Stop Leak - 8 oz

7.5

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Bar's Leaks Engine Repair - 16 oz

7.2

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