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Bar's Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair, 16.9 oz.

  • Based on 3,485 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Aug 8
Order within 1 hour and 28 minutes
Available payment plans shown during checkout

Size: Pack of 1


Style: Repair


Features

  • REPAIRS LEAKING MAIN SEALS AND GASKETS: We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines.
  • RENEWS WORN VALVE SEALS AND GUIDES: Your vehicle is a good candidate for Bars Leaks Oil Seal Engine Oil Burning & Leak Repair if it does not consume more than one quart of oil per day.
  • STOPS OIL BURNING & BLUE EXHAUST SMOKE: This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUVs. Our product can also be used in heavy-duty applications referencing the appropriate dosage level.
  • SEAL ALL OTHER OIL LEAKS, DRIPS AND CONSUMPTION: This applies to a wide range of other motor applications too - tractors, boats, RVs, motorcycles (including wet clutch), ATVs, lawn equipment.
  • MADE IN THE USA

Description

Your vehicle is a good candidate for Bar’s Leaks Oil Seal Engine Oil Burning & Leak Repair if it does not consume more than one quart of oil per day. We have designed this product to work in all gasoline and diesel engines including turbocharged, EcoBoost, hybrid and even racing engines. . This covers 3, 4, 5, 6, 8 and 10 cylinder engines in all cars, trucks, vans and SUV’s. Our product can also be used in heavy-duty applications referencing the appropriate dosage level. This applies to a wide range of other motor applications too: tractors, boats, RV’s, motorcycles (including wet clutch), ATV’s, lawn equipment.

Brand: Bar's Leaks


Vehicle Service Type: Car, Truck


UPC:


Automotive Fit Type: Universal Fit


Global Trade Identification Number: 58


Brand: ‎Bar's Leaks


Vehicle Service Type: ‎Car, Truck


UPC: ‎046087010358


Automotive Fit Type: ‎Universal Fit


Global Trade Identification Number: ‎58


Manufacturer: ‎Bar's Products


Size: ‎Pack of 1


Model: ‎Oil Seal


Item Weight: ‎1.1 pounds


Package Dimensions: ‎8.19 x 3.58 x 2.09 inches


Country of Origin: ‎USA


Item model number: ‎OS-1


Manufacturer Part Number: ‎OS-1


Date First Available: October 3, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Aug 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Good product actually works
Size: Pack of 1 Style: Repair
Why did you pick this product vs others?: Had good reviews ,but I was still a little skeptic , I have a scion TC 250,000 miles. It’s a 2006. Value for money: Bottle cost versus the repairs Oil leakage: Had some leaks around the head and some little other minor leaks Seal: Took care of the oil leaks Oil burning: Definitely slowed up the oil consumption ... show more
Reviewed in the United States on June 26, 2025 by AmazonCustomer

  • Worked great at slowing oil burning / leak
Size: Pack of 1 Style: Repair
Impressed with how well this product help reduce the amount the of oil consumption and oil leaks in our 2008 6cyl , 175K mile car. While the car still has a leak somewhere as I can smell it hit the exhaust pipe at times, it is not leaving alot on the ground like it was before. I will likely keep using this product after each oil change until we eventually just get rid of the car. ... show more
Reviewed in the United States on December 22, 2024 by Rob

  • Kind of works
Size: Pack of 1 Style: Repair
Why did you pick this product vs others?: Seems to work. Not sure. Oil consumption decreased somewhat.
Reviewed in the United States on July 15, 2025 by David

  • Burning oil smell stopped
Size: Pack of 1 Style: Repair
Had a small oil leak that created a burning smell. After adding oil seal during a regular oil change the burning oil smell went away. It came back months later and added more that stopped the burning oil smell again, so it seems to have worked twice. Remember to not overfill your regular oil by replacing this product in place of a 1/2 quart of regular oil. ... show more
Reviewed in the United States on July 5, 2025 by My-Review

  • Didn't work
Size: Pack of 1 Style: Repair
Useless
Reviewed in the United States on July 6, 2025 by Güven AKÇAM

  • Did the job
Size: Pack of 1 Style: Repair
Did the job, but from time to time, i still see smell oil burn and see blue smoke. But it's fine overall
Reviewed in the United States on July 5, 2025 by Ray Kais

  • If it sounds to good to be true.......
Size: Pack of 1 Style: Repair
Our engine was now where near the leakage this claimed to fix. Never really saw a difference after a couple thousand miles and had to take to a shop for a new seal. I knew it was a shot in the dark. But it made absolutely no improvement.
Reviewed in the United States on June 8, 2025 by Attention All Shoppers

  • Works goods for small leaks or damaged seals
Size: Pack of 4 Style: Repair
I used a ton of this S* in my Mountaineer before I realized that my F* oil sensor plug was actually leaking. $20 and 15 minute fix. However, I use this stuff in all my older vehicles and any seal leak stops after a week or so. Good S* ! A must for older motors. Good price.
Reviewed in the United States on January 26, 2025 by ChicagoVegasJack

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