Best Engine Oil Leak Sealer in 2022 [*Top Picks*]

Looking for the best engine oil leak sealer on the market? We’ve got you covered. Check out our ratings of absolute bestsellers below and make a final decision.

4777 Reviews Scanned

  • Bar's Leaks High Mileage Engine Repair, 16.9 oz
    Bestseller #1
    Bar's Leaks High Mileage Engine Repair, 16.9 oz (386)
      Increases Oil Pressure Reduces Friction Helps Clean Internal Parts Quiets Noise
  • Lucas Oil 10278 Engine Oil Stop Leak, 1 Quart
    Bestseller #1
    Lucas Oil 10278 Engine Oil Stop Leak, 1 Quart (386)
      Compatible with petroleum, semi-synthetic and full synthetic motor oils Renews worn seals with no risk of damage or eventual corrosion Reduces engine noise and oil consumption, while raising oil pressure Contains no harmful solvents
  • BlueDevil Oil Stop Leak
    Bestseller #1
    BlueDevil Oil Stop Leak (386)
      Permanently seal seeping or dripping oil leaks Made in United States Package Dimensions : 3.25 L x 6.0 H x 1.0 W (inches) Package Weight : 1.0 pounds
  • Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair
    Bestseller #1
    Bar's Leaks Oil Seal Engine Oil Burning and Leak Repair (386)
      This Premium Quality Synthetic Blend Works With All Types Of Motor/Engine Oil Including Regular Petroleum, High Mileage, Synthetic Blends And Fully Synthetic Formulas Works In All Gasoline And Diesel Engines Including Turbocharged, Eco Boost, Hybrid And Even Racing Engines, Including 3, 4, 5, 6, 8 And 10 Cylinder Engines In All Cars, Trucks, Vans And Suv'S Can Also Be Used In Heavy-Duty Applications As Well As Tractors, Boats, Rv'S, Motorcycles (Including Wet Clutch), Atv'S, Lawn Equipment In Most Cases The Oil Leak Issue Will Be Repaired With A Single Dosage. However, For Best Results And To Prevent The Problems From Reoccurring, Use With Every Other Oil Change, Or Once Per Year
  • Bar's Leaks Rear Main Seal Repair, 16.9 oz
    Bestseller #1
    Bar's Leaks Rear Main Seal Repair, 16.9 oz (386)
      Seals timing cover, cam seal, rear main and other hard to stop oil leaks Add to engine oil Specifically designed to seal rear main leaks, but also works better than a conventional stop leak on all other leaks Add entire bottle of Rear Main Seal Repair to engine crankcase (where you add oil) at or between oil changes. Do not overfill. Most leaks will stop within 100 miles or 2 days of driving DOSAGE: One bottle treats 4 to 6 quarts of oil.
  • Bar's Leaks 1010 Engine Oil Stop Leak Concentrate, 11 oz, 1 Pack, Grey
    Bestseller #1
    Bar's Leaks 1010 Engine Oil Stop Leak Concentrate, 11 oz, 1 Pack, Grey (386)
      Stops and seals motor oil leaks Works with all types of motor oil Restores gaskets; seals to stop and prevent engine oil leaks Compatible with vehicle type: Car
  • Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5)
    Bestseller #1
    Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5) (386)
      Effectively seals all minor engine oil, transmission and power steering system leak It works with all engine oil, transmission fluid and power steering fluids Also compatible with diesel and turbocharged engines One bottle to treats one engine oil, transmission fluid or power steering leak in a standard passenger car or light truck Starts working the minute you install and start driving the vehicle. You will usually see results in about 200 miles or three (3) days of driving
  • Bar's Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz.
    Bestseller #1
    Bar's Leaks MS-1 Main Seal Motor Oil Leak Repair, 32 fl. Oz. (386)
      Safe and easy to use, and works quickly Best stop leak formula money can Buy Synthetic blend, for all engines Repair leaking front and rear main seals Stop cam and timing seal leaks
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