Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart

My daily beater commuter car developed a leak at the rear main seal. Mechanic quoted a grand to fix. There's no way I was going to pay that but the leak was pretty embarrassing. I figured what the heck. I'll try this mechanic in a bottle because why not lol. My gnarly leak completely disappeared within 2 days. I can actually park in my driveway again. Holy crap. Who knows how long this will last. At the very least it bought me time. I will be adding a quart of this into every oil change.

The rear main seal was leaking on my Z71. I added a quart of this stop leak and it greatly reduced the oil leak.

I have used this for years. It does an excellent job. The larger size makes it very cost effective.

Works good stop almost all the leak just a small drop once in a while now.

Worked on my Rav4

Lucas has been making quality products since 1989 and if you an older ride that is smoking or a little noisy this additive will do the trick. A great value and another quality product from my friends at Lucas.

Great

I normally dont write reviews but I needed to on this Lucas product. I never have any luck with stop leak anything, but I've used Lucas oil stabilizer for years and have always liked their products. This year I tried their stop oil leak product on my old Ford truck. It has a 460cid motor with 170k miles on it. It's all stock no major work done to it. It had a major oil leak from the rear main seal, and I'm to lazy to do all the work to change the seal. So I tried the stop leak and it to my surprise it stopped the leak 100% no bs. I couldn't believe it so I tried it in my Mini Cooper as well. It has well over 200k and leaked a lot of oil. I'm not sure where the leak is, so on my last oil change I added the stop leak. It reduced the leak 95% it could be a 100% and the few drips may be left over oil on the chassis. I totally recommend Lucas stop oil leak! Actually all the Lucas oil products are second to none.