Lucas Oil 10278 Engine Oil Stop Leak - 1 Quart

Even though I’m long retired from driving kids to school, I still baby my old sedan. My son suggested this Lucas stop leak as a gift after he saw the oil spots on my driveway. I poured it in after an oil change and checked a week later. The little puddles were gone, which made me very glad.

Help old cars run smoothly. We used it in a 2007 Honda pilot to help with an engine leak. High quality and works well!

I have a Husqvarna 54" mower with a 24HP Kawasaki engine. I noticed that the engine base was starting to leak oil and I have always used 10W-30 Mobil synthetic Extended performance oil. I tried the Lucas Stop leak using 20% and I noticed that after about 5 hours use that the leak had stopped, almost completely. The engine/mower had about 650 hours when I started to use it. It now has 740 hours, and it's running just fine with no leaks. So for me it seemed to work beautifully, with no hitches.

Once my old Subaru started leaving little oil spots at the trailhead, I grabbed this Lucas stop leak so I wouldn’t be topping off before every weekend hike. I poured the whole quart in during an oil change and drove my usual mountain loop the next morning. after two trips out to the state park, the spots in my driveway were way smaller and I’m barely adding oil now. That made me really glad I tried it before saving for a full seal job. It thickens things up just enough and the engine still feels smooth on long uphill climbs. I keep a spare bottle in the back next to my trekking poles.

Don’t know quite yet if I like it or not

Amazing product! My older car had a persistent rear main seal leak and was burning oil. After adding this during the last oil change, the dripping has completely stopped and the engine runs much quieter. Highly recommend giving it a try before spending money on expensive repairs.

After another long night shift, I noticed a few fresh oil spots under my old Honda and got tired of worrying about it. I tried this Lucas stop leak and within a couple of days the drips on my driveway were way less. I like that I just pour it in with my regular oil change and forget it.

It seemed to swell some gaskets too much... I didn't have a valley cover oil leak until I used this. Was trying this to try to swell oil pump pickup oring on 5.3l gm it did not work out and had to replace the oring anyway. No external oil leaks were present on this engine til I used this however the engine does have 275000 miles so could be this or just the mileage causing the leak however the valley gasket is swelling outward which i think this product does claim to do.

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