10019 Hydraulic Oil Booster and Stop Leak - 1 Quart, White, 32 Ounce

I bought this for my old floor jack. But when my Kubota loader cylinder front seal started to leak, I put this in to see if it worked. After running it for a while, the leak stopped. Let's see how long it will work for while I wait for the rebuilt kit to arrive.

I bought this on mistake thinking it was jack oil, it is not. It is an addictive. I did however have an old bottle jack that I replaced with hydraulic jack oil and it leaked a little so I added a squirt of this. This stopped the leaking! I had originally bought it to fill a flooorjack but unfortunately it looks like the Lucas oil I need only comes in bucket size.

Sealed iit without using the whole bottle.

Works well

Easy to use. Not sure yet if will stop minor seal leak

I had read a review of this product on a Youtube site about fixing leaky power lifts for outboard motors, which used the word "miraculous". I had a chronic leak on my outboard power lift, and the product was not expensive so I thought I'd try it. It was indeed miraculous!! Totally fixed. I could hardly believe it. Just be patient, it does not go through pumps as fast as regular fluid. I NEVER write reviews but I had to this time.

Not a fan of snake oil additives, but years ago tried lucas power steering conditioner on my 98 Chev pick up that’s has an expensive hydraulic sensor to vary the power steering assist, also fixed a couple of steering racks with morning sickness. So when my jack developed leak and was leking down figured give it try. Drained jack, flushed with alcohol and put in fresh hydraulic oil with the Lucas. Took about 3 days but leaked stop and jack doesn’t leak down.

I have a 1949 Ford 8N tractor that I recently purchased. The hydraulics indicated that work might have to be performed--when I would raise the drawbar and park the tractor, the drawbar would sag within hours. So I decided to use this Lucas product. I siphoned off approximately 1 quart of the tractor's hydraulic fluid, and replaced with an equal amount of this, then operated the tractor for about half an hour to exercise it. I fully raised the drawbar and then shut the ignition off. 6 days later, the drawbar dropped very gradually, but it's still off the ground amazingly, and this has been in spite of with daytime temperatures below freezing, and night-time temperatures in the teens (the tractor sits outdoors). Needless to say, the results with this modest experiment speak for themselves! So I'm impressed--I could've easily paid a mechanic several hundred dollars to overhaul the hydraulics and I might've seen results that I have now. It's no replacement for a rebuild to spec, but could be enough to get you more use out of older equipment.