⚙️ Keep your gears smooth and your ride leak-free — because your drive deserves the best!
Bardahl3119 Gear Oil Additive + StopLeak is an 8 oz. extreme pressure lubricant designed to extend gear oil life, condition seals to stop leaks, reduce gear wear and noise, and improve manual transmission shifting. Compatible with all manual transmissions and differentials using standard automotive gear oils or motor oil, it ensures enhanced performance and longevity for your vehicle's drivetrain.
| Brand | Bardahl |
| Vehicle Service Type | Car, Truck |
| UPC | 076906031196 |
| Automotive Fit Type | Universal Fit |
| Global Trade Identification Number | 00076906031196 |
| Manufacturer | Bardahl |
| Size | 8 Ounce |
| Model | Gear Oil Additive + StopLeak |
| Item Weight | 3.2 ounces |
| Product Dimensions | 2 x 2 x 6 inches |
| Item model number | 3119 |
| Manufacturer Part Number | 3119 |
B**S
Really Works!
Had a small leak in differential seal on my ezgo golf cart. There was always a spot about the size of half dollar under cart after a round of golf. Since they wanted $400 to replace seal because motor had to be removed gave this product a try. Worked great, after two rounds of golf leak is completely gone!
D**S
It worked for me
I bought a used 2007 Chrysler Pacifica that ended up having a read differential leak which turns out not to be serviceable. (You need another diff). As a last resort I bought the differential conditioner / sealer and to my surprise the leak stopped . Have since put 1500 miles on the car and still clean and dry. As a last resort I would definitely recommend.
G**S
Three Stars
No noticeable difference,
C**S
No leaks
used in conjunction with a spray on sealer bought here as well. 2 cracks emanating from the transmission drain plug on a 2 cycle water cooled 80cc motorcycle. Saved the engine as far as I am concerned
N**S
Good product should you neeed it.
I was told by 2 different auto shops differential was leaking but each one had a different opinion on leak.I had estimates from 650 to 725.00 to fix. so I bought Gear oil stop leak to resolve the issue myself.After purchasing some car ramps I wanted to see if I really had a leak.After my own inspection THERE WERE NO LEAKS. I was being taken advantaged of.
K**R
Didn't stop my leak or even slow it down
1990 Silverado 4x4 front transfer case has a slow leak. I have added the product and I will update this review in a couple weeks with the actual results. okBeen 1 full week since additive was added. I SEE NO SLOW DOWN OF LEAK. will update @ 2 weeks, been another week still I see no slowing down of leak. Will update again..ok been 3 weeks since added to transfer case and still have leakage. Lower my rating to 2 stars, JUST HIGH PRICE LUBE....NOW BEEN 3 MONTHS STILL WEEPING, AGAIN JUST REALLY HIGH PRICED 80-90 GEAROIL....
C**Y
Pretty good
Rear end was leaking on my 210k truck at the yoke and recently started leaking on the brakes from the axle seal. Dumped this stuff in stoped the leak at the yoke completely and as far as I can tell stopped the leaks on the brakes or atleast slowed it down. Used to see a line of oil on the rotor and it’s no longer there. Before anyone says fix it. It’s a 1000$ work truck so 10$ I’m happy.
S**R
Seamed to slow the leak but not stop
but the fault would be the output shaft bearing is shot so no suprise the leak did not stop
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