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

  • Based on 3,604 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Nov 17 – Nov 18
Order within 15 hours and 59 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: ‎8.15 x 3.66 x 2.05 inches


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: Nov 17 – Nov 18

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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  • Affirm Financing
  • 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


  • It Works!
Size: Pack of 1 Style: Repair
It sealed the leak
Reviewed in the United States on September 24, 2025 by J. Ben

  • Does exactly what is advertised!
Size: Pack of 1 Style: Repair
Works great! Engine running smoother and no smoke at all now!
Reviewed in the United States on September 15, 2025 by Kevin Williamson

  • Had multiple leaks, heavy oil loss
Size: Pack of 1 Style: Repair
As my car get near 15 years old and still a daily driver had started to experience many leaks. The BMW community says not to use the product in your BMW. I have a BMW 323i and with the age and mileage was looking at putting a couple thousand into repairs so gave this a shot. Multiple leaks were resolved while one weeper persists. Have ran for over a month with minimal oil loss and improved performance. I did end up flushing out the system after running it with this product in it for the month. ... show more
Reviewed in the United States on January 10, 2025 by K

  • Works, but doesn't actually fix anything
Size: Pack of 1 Style: Repair
Used this product in a 2012 Civic that was burning a quart almost every 500 miles. This almost put a complete stop to that. I had to combine it with another product in order to stop the oil burning almost completely, but this did decrease the amount of oil burning by at least 40%. Keep in mind this will not fix a broken engine. My civic has a defect from the factory that causes oil blow by - the only true fix is to get new piston rings installed. This wont fix anything - but it will help with oil burning. ... show more
Reviewed in the United States on January 29, 2024 by venom104

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

  • Stops oil leaks, maybe not completely, but 80 percent
Size: Pack of 1 Style: Repair
I have an older car and this stuff works.
Reviewed in the United States on July 29, 2025 by jamesandpatsy

  • terrible product, killed my engine
Size: Pack of 1 Style: Repair
had my mechanic use this Bar’s Leaks oil seal repair, thought it would help with a small leak. right after putting it in, engine started knocking badly. not long after, the whole engine was done. ended up costing me around $15000 for replacement. super disappointed, this product did more harm than good. never using again. ... show more
Reviewed in the United States on August 15, 2025 by Daniel C

  • 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

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