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- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
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30-day returns
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Oct 30 – Oct 31
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At a glance
- Condition
- New
- Size
- Pack of 1
- Style
- Repair
- Model
- OS-1
- Weight
- 1.1 lb
- Liquid Volume
- 16.9 fl oz
- Package Information
- Can
- In the box
- 16.9 oz Oil Seal
Features 5
- DON'T GAMBLE ON AN UNPROVEN BRAND: A leaking engine, head gasket, cooling system, power steering or transmission is your one shot to avoid a bigger repair bill reach for the brand proven for over 75 years
- 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.
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.
Specs 20
| Brand | Bar's Leaks |
|---|---|
| Liquid Volume | 16.9 fluid ounces |
| Package Information | Can |
| Vehicle Service Type | Car, Truck |
| Brand Name | Bar's Leaks |
| Manufacturer Part Number | OS-1 |
| UPC | 046087010358 |
| Number of Packs | 1 |
| Global Trade Identification Number | 58 |
| Manufacturer | Bar's Products |
| Size | Pack of 1 |
| Item Highlight | Repairs Leaking Main Seals and Gaskets, Renews Worn Valve Seals and Guides, Stops Oil Burning & Blue Exhaust Smoke |
| Unit Count | 16.9 Fluid Ounces |
| Item Type Name | Oil Seal (Engine Oil Burning/Leak Repair) |
| Item Weight | 1.1 pounds |
| Model Number | OS-1 |
| Manufacturer Warranty Description | See Manufacturer |
| Container Type | Can |
| Compatible with Vehicle Type | Car, Truck |
| Automotive Fit Type | Universal Fit |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Oct 30 – Oct 31
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
Top Amazon Reviews
Works great for small oil leaks in older car
Size: Pack of 1
Style: Repair
My mechanic gave me an estimate of $3000 repair for an oil leak. This fixed it.
Reviewed in the United States on September 9, 2026 by Montgomery
A Stop Leak That Works!
Size: Pack of 1
Style: Repair
This engine seal stop leak by Bars Leaks actually works! It can't fix a cracked block or head, but if it is your gaskets that are worn and leaking this will restore the gasket and stop the leak. Follow the directions to the letter however. That is important. I do recommend this over other brand oil stop-leaks.
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Reviewed in the United States on July 5, 2024 by A. Davis
no work
Size: Pack of 1
Style: Repair
i try no wok
Reviewed in the United States on April 13, 2026 by francisco
Seals leaks on O-rings
Size: Pack of 1
Style: Repair
This item seal leak worked for me, it was not Magic, product went to work right away, day by day till no more leakage under neath ATF pan, dealership said it was the oil cooler (would cost to replace oil cool $950.00), I did see a glimmer of oil shine when I used my flashlight, problem was #1 oil gasket was in wrong place on plastic cap, (use 2nd lip), I believe the problem was rear main seal o ring shrieked, Bar’s seal made seal expand / grow, after about a week no more leaks. I did change the oil before I added this product with fresh oil, 5W/20 6 quarts in a 2015 Jeep Wrangler. oil cooler was good, o rings could of been the same, Engine shows no sign of leaking and it’s been 2 months now. “Hope it works for U”. Before spending your money try using this Bar’s leak stop, what do you have to lose $950! 😂
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Reviewed in the United States on February 28, 2022 by Handy Man
Did'nt Make Much Different
Size: Pack of 1
Style: Repair
Did'nt noticed much difference in my vbehicle
Reviewed in the United States on September 16, 2026 by T.H
Product is great
Size: Pack of 1
Style: Repair
terrific, worked wonders
Reviewed in the United States on July 25, 2026 by Julie Murphy
Post it where everybody can see it
Size: Pack of 1
Style: Repair
0 STARS OR BELOW I bought this oil seal product and IT DOESN'T WORK, and it didn't stopped or even slowed the leak and then I call the company and he told m flately that it doesn't have any kind of warranty, and in order to get my money back I would have to take it to the dealership or a certified mechanic,to have it verified and certified, nobody is going to spend more money and time to get a refund for less of what you are spending, SO DONT BUY THIS TRASHY PRODUCT
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Reviewed in the United States on July 21, 2026 by Josetexas1978
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.
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Reviewed in the United States on April 11, 2026 by Floridaman.