Bar's Leaks 1334-5PK One Seal Stop Leak - 11 oz, (Pack of 5)

This seemed to slow the leak in an older Kia Sportage and it was a decent leak. Did not stop it completely but it did help. I think the seals need replacement. But it definitely slowed it which works for now!

I've used this stuff in 2 different vehicles with small oil leaks and it worked.

Works as expected. I use it as a preventive measure in high mileage transmissions that is not yet leaking. I use it to keep the soft seals pliable before they leak. Automatic transmissions have many soft seals internally that are subject to leaking and yet will not leave an ATF puddle on the ground. Caught early enough a leaking external seal can be helped with this stuff. It will not "cure" any internal hard seals that may be leaking.

Excellent

Ok…if you’re reading this then you’ve already searched the internet on whether or not this stuff is safe and/or if it works. As a mechanic, I generally like to take things apart and fix them properly but I have had such good luck with other Bars Leak products (Bars Leak radiator fix is truly amazing stuff )that I decided to give this a try. My issue was this. I had a zero turn mower that uses 20w50 full synthetic motor oil in its hydro’s. Most zero turns use a heavy viscosity motor oil which is why I went with the oil additive vs the hydraulic additive which Bars Leak also makes. Anyway, I had a hydro motor leaking ever so slightly. It would’ve been a huge job to take out and apart and I was pretty sure it was the same problem I’d had on another unit…a leaking o-ring on the low pressure side of the pump. Since this stuff softens the seals/o-rings and causes them to expand I figured it was perfect for the job. Well, it was. I put a little bit in the mowers reservoir and then mowed with it for about 45 minutes. I parked the machine on a piece of construction paper to let me know if I needed to add more or if the product failed. The next morning I came out annnnnnnnd……not a drop! It worked. For the price, this product is hard to beat. It’s inexpensive, easy to use and protects me from inadvertently running out of hydro oil.

Did not seem to do much definitely did not stol the leak, maybe slowed a bit?

I had a terrible power steering fluid leak, that my mechanic couldn't track down. I tried gallons of the Valvoline stop leak which did nothing. I tried a lot of the Lucas oil stop leak but all that did was make it leak more. Three bottles of this little stuff and I don't see a leak anymore.

Had a small oil leak in my 2010 Honda pilot poured this in it and my motor ceased. Not kidding. The motor did have 350,000 miles on it I was Using 20w-50. May have had a head gasket leak as well but ran fine for a one time with this leak but 2 days after I used bars leak there slowly was a major reduction in compression pressing the gas pedal did nothing at the end. Broke down completely about 1030pm on the highway last Sunday. Had to tow home. There’s a giant paperweight in front of my house I don’t know what to do with.. good thing is it is my moms car and I hate her THANKS BARSLEAK! I’m gonna have it towed as an abandoned vehicle and let her deal with the impound fees just to get a dead car 🤣 I went and bought a Kia Niro EV yesterday so i won’t be having any petty motor issues any longer

يعمل بشكل جيد بعد صبه في محرك السيارة مع زيت جديد بدأت الاحظ بعد اسبوعين توقف التسرب من عدة اماكن كان بها تسريب وقل استهلاك الزيت بشكل ملحوظ جدا

Product does not function even on minor leaks that other brands working.