



🛠️ Seal the deal, stop the leak, own the road.
Bar's Leaks OS-1 is a premium synthetic blend engine oil additive designed to repair leaking main seals and gaskets, renew worn valve seals, and stop oil burning and blue exhaust smoke. Compatible with all gasoline and diesel engines—including turbocharged, EcoBoost, hybrid, and racing engines—this 16.9 oz. formula works across a wide range of vehicles and equipment. Made in the USA, it supports cleaner, more efficient engine performance while preventing costly repairs.



| ASIN | B0764H6K45 |
| Best Sellers Rank | #13,832 in Automotive ( See Top 100 in Automotive ) #26 in Motorcycle Chemicals & Fluids #241 in Automotive Oils |
| Brand | Bar's Leaks |
| Brand Name | Bar's Leaks |
| Compatible with Vehicle Type | Motorcycle |
| Container Type | Can |
| Customer Reviews | 4.1 out of 5 stars 3,580 Reviews |
| Global Trade Identification Number | 00046087010358 |
| Included Components | 16.9 oz oil seal |
| Item Type Name | Oil Seal (Engine Oil Burning/Leak Repair) |
| Item Weight | 1.1 Pounds |
| Item height | 4 inches |
| Liquid Volume | 16.9 Fluid Ounces |
| Liquid volume | 16.9 Fluid Ounces |
| Manufacturer | Bar's Products |
| Manufacturer Part Number | OS-1 |
| Manufacturer Warranty Description | See Manufacturer |
| Package information | Can |
| UPC | 046087010358 |
| Unit Count | 16.9 Milliliters |
| Vehicle service type | Motorcycle |
| Viscosity | 15W 40 |
A**I
Works
Works
E**L
Work
Perfect product
T**N
it really worked on my 2007 bmw 740 in dubai
my car smoked a lot on high throttle and when the traffic was busy or parked for 5 to 10 minutes, the exhaust always smoked and smelled I spent a lot of money on some additives, and got advice from the garage for the repair very high repair cost to replace valve seals, I also ordered many kinds of pcv valve to replace but no success i have tried this product and it worked, it's not 100% but it's also 70%, my car has reduced smoke, and has reduced odor, i think it will work by adding it every time oil
A**I
ممتاز
انصح استخدام هذا المنتج ممتاز
R**L
Not as claimed
I purchased it based on what was printed on the product where it seems like it perfectly suited my vehicle because it was burning just a bit of oil over a period of time. Had no change in oil consumption&exhaust smoke. I just went ahead and rebuilt my engine instead.
S**H
VERY GOOD
VERY GOOD
D**L
التسريب ما زال موجوداً still leaking
ما زال هناك تسريب للزيت، وما زال هناك دخان يخرج من العادم Still oil engine leaking and exhaust still smoking
A**.
Blue smoke doesn’t go
It doesn’t work for blue smoke issue
Trustpilot
2 weeks ago
2 months ago