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Bar's Leaks

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 Saturday, Jun 13
Order within 10 hours and 16 minutes
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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


Liquid Volume: 16.9 Fluid Ounces


Package Information: Can


Vehicle Service Type: Car, Truck


UPC:


Container Type: Can


Compatible with Vehicle Type: Car, Truck


Automotive Fit Type: Universal Fit


Liquid Volume: 16.9 Fluid Ounces


Brand Name: Bar's Leaks


Manufacturer Part Number: OS-1


UPC: 046087010358


Global Trade Identification Number: 58


Manufacturer: Bar's Products


Size: Pack of 1


Model Number: OS-1


Item Weight: 1.1 Pounds


Manufacturer Warranty Description: See Manufacturer


Item Type Name: Oil Seal (Engine Oil Burning/Leak Repair)


Included Components: 16.9 oz Oil Seal


Unit Count: 16.9 Fluid Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Jun 13

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
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Worked quickly!!
Size: Pack of 1 Style: Repair
Love this product. My 2016 Toyota Camry was burning oil. I found this on Amazon and figured I’d give it a try. To my surprise this resolved my issue! I just ordered a second bottle so I can keep up with the once a year recommendation.
Reviewed in the United States on April 28, 2026 by TrueChase
    • Really works
Size: Pack of 1 Style: Repair
Works. Had a small leak and i flushed the engine, changed the oil adding the stop leak with the new oil. Ran the engine as instructed to, no leaks and its been over a month. Was recommended to me, and it was worth it.
Reviewed in the United States on October 31, 2025 by Shawn
    • no work
Size: Pack of 1 Style: Repair
i try no wok
Reviewed in the United States on April 13, 2026 by francisco
    • Stop liqueo
Size: Pack of 1 Style: Repair
It's excellent—I highly recommend it. It stopped the oil leak in my steering system.
Reviewed in the United States on May 12, 2026 by Miguel perez
    • Works for some I guess.
Size: Pack of 1 Style: Repair
I don't know why I keep wasting my money on these additives that don't work. There is no miracle repair.
Reviewed in the United States on January 6, 2026 by 1Fisherman
    • Product worked Perfect on my 2012 BMW 750Li
Size: Pack of 1 Style: Repair
The product worked on a 2012 Bmw 750Li that was smoking when at a light, in traffic, or in line at fast food..... Was fine when diving as long as not at a stand still for over 3 to 5 Mins or stop and go traffic..... I fell like it was the valve seals leaking ao I brought this in hopes it would work.... The initial one I was going to try seems to stay sold out..... I decided to purchase before a trip that was 200 miles away to give it a chance to work..... I put it in the night before for 15 to 20 mins 1st and as always it started smoking...... On the trip back 2 days later before making it home we stopped at Zaxby's and about 6 cars were in line.... I say oh boy because it always smokes after a few mins in line soni have to cut the engine off and turn back on after a car move up..... But this time for the 1st time it did not smoke.... I was amazed and kept looking for the smoke but never came..... So the product works.... Dont know if it already worked on the first 200 mile because i did not test until i retured so I drove over 400 miles before i test it.... But no smoke at all...... Probably will cost over 5k to change all the valve seals if not more. ... show more
Reviewed in the United States on June 28, 2021 by J. Griffin
    • Not magic in a can.
Size: Pack of 1 Style: Repair
I have been working on cars over forty years, and these products typically do not work, and this one is on that list. Now looking at the comments, many gave it great reviews, and so I decided to try it, needless to say it was a big flop. If you have a few bucks to through away and you are desperate go for it but have a backup plan. Yes, rear and front seals are challenging, depending on the manufacture, but realize what you have and attack the problem where it lies, that is replace the worn seal, stop looking for magic in a can. This is not it. I would have given it a half star, but the system does not allow. ... show more
Reviewed in the United States on January 15, 2026 by Mickey D.
    • This thing works!
Size: Pack of 1 Style: Repair
After not driving the truck for two week, I noticed some little blue smoke came out of my 2006 tacoma when I started it. Searched web and this product was mentioned. I put one bottle into the engine when doing the oil change and never saw the blue smoke again. Can't be easier than that and it does what it says to do. ... show more
Reviewed in the United States on April 11, 2026 by Floridaman.

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