🛠️ Seal the deal on leaks before your ride tells the story!
Bar's Leaks OS-1-4PK is a powerful oil seal and leak repair solution designed for all gasoline and diesel engines, including turbocharged and hybrid models. Each 16.9 oz bottle in this 4-pack renews worn valve seals and stops oil burning and blue exhaust smoke, compatible with 3 to 10 cylinder engines. Versatile enough for cars, trucks, motorcycles, and even heavy-duty equipment, it’s proudly made in the USA to ensure top-tier performance and reliability.
| Manufacturer | Bar's Products |
| Brand | Bar's Leaks |
| Model | Oil Seal |
| Item Weight | 4.9 pounds |
| Package Dimensions | 8.75 x 7.5 x 4.75 inches |
| Country of Origin | USA |
| Item model number | OS-1-4PK |
| Manufacturer Part Number | OS-1-4PK |
R**B
Worked great at slowing oil burning / leak
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.
C**K
Works goods for small leaks or damaged seals
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.
K**K
Had multiple leaks, heavy oil loss
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.
A**R
Actually works for burning oil
Actually works. Had a car that burned oil bad due to a poor engine design! This kept the oil contained. However I found this needed to be constantly applied to work. Not just one and done in my situation.
T**N
Read the fine print
I tried this on a 2004 Tahoe Z71 with 120k miles that had a rear main engine seal leak. It did not work and I thought I would utilize the full refund guarantee until I read the requirements of having a repair shop use it and verify that it did not work. Where are you going to find a shop that will waste their time to use this item? You’d have to make one up, so use it as a “Hail Mary” to see if it’ll work but don’t deceive yourself into thinking that you can get your money back if it doesn’t work. P.S. I work part-time at a repair shop and I won’t compromise my values to get back $15+ because of a gimmick warranty offer.
Z**O
Stops small leaks.
I use it every 6 months with 12,000 mile synthetic oil and keeps seals lubricanted, and leak free.
D**S
Snake Oil
Doesn’t change a thing. My vehicle blows a little white smoke only while idling so I suspect it isn’t major. This did absolutely ZERO to change it.As in Pharmaceuticals, they call this the “Placebo effect” Don’t waste your money.
B**N
Perfect for my 1999 and 2000 vehicles
It was easy to use and performs as advertised. You have to use a new bottle at each oil change. I saw this on a Scotty Kilmer video and used it to stop fluid leaks.
Trustpilot
4 days ago
1 week ago
