Bar's Leaks Jack Oil with Stop Leak - 12.5 oz

Bar's Leaks Jack Oil with Stop Leak is one of those products that's inexpensive enough to try before jumping into a more expensive repair for a minor hydraulic jack leak. The bottle is clearly labeled with straightforward directions, and the built-in nozzle makes it easy to add the fluid without creating much of a mess. The oil has the proper consistency for hydraulic jacks and helps replenish fluid while conditioning seals that may have dried out over time. It's important to have realistic expectations this isn't a permanent fix for severely damaged seals or major leaks but it can be an effective solution for slow leaks and routine maintenance. I also appreciate that it combines hydraulic jack oil with a stop-leak additive, so there's no need to purchase multiple products. The 12.5-ounce bottle provides enough product for servicing most standard floor jacks and bottle jacks, with some left over for future maintenance. Overall, this is a quality maintenance product that is easy to use, reasonably priced, and worth keeping in the garage. If your hydraulic jack has developed a minor leak or simply needs fresh fluid, this is a practical first step before considering more extensive repairs.

My old floor jack wasn't working. Bought this product to see if I could revive my jack. Worked absolutely perfectly! My floor jack works like new! Great product!

this is excellent product works great on all hydraulic things.

I wish this had a smaller nozzle. My jack has an extremely small filler port for some reason, and I didn't have a funnel small enough either. I was hoping this would come with a nozzle where I could cut off the tip to my desired size, but it just has a cap with something like a 1/4 inch hole. I could cut the cap, but it would still be about 1/4 inch. Oil everywhere! Not much I could do in the moment (and because I was impatient + didn't want to buy a new funnel). Obviously not the fault of the bottle, but for convenience they could have allowed us to cut the nozzle to the size needed rather than imposing a cap. Either that or something tiny like those 3-in-1 oil bottles you can get so that small filler ports are accommodated. Otherwise, oil seems... oily... does the trick. Jack works. Can't speak to all the benefits it claims to have but the Jack works.

Bought a brand new Jack and needed to fill it up with oil. It Does what it is intended to do. Good quality oil

Guys- I had a leaking 3 ton craftsman jack. The leak was big enough to make a decent size puddle every few days. Having used other fluid products in the past that advertise "stop leak" and having it not work, I was pretty skeptical of this one... BUT, I needed some jack oil anyway so I gave it a chance. I opened the filler hole on my jack, pumped the 3 ton floor jack up and down many times with a tray underneath to catch much of the remaining old oil left in the jack. Then I refilled with this stuff, closed and reopened, and kept working the jack up and down, and topping off. I let excess air escape. I only used maybe 1/3 of the bottle of new oil. To my surprise, the jack works great again, and now does not leak at all! For the price, its definitely worth a go before you start taking everything apart and replacing seals. A+ from me so far! A tip: The piece of cardboard that is in the spout exists to SLOW the flow as you are pouring it in to the filler hole. Cut a small hole in this cardboard with a small screwdriver before filling. UPDATE: After a year or so, it started leaking again... however, I used the remainder of the bottle several times to top up fluid when the jack was failing to restore operation. Due to price and my laziness to take the jack apart, I ordered another bottle and now I just keep a pan under the jack when unused. One day, I'll get to replacing the seals but at least this is a quick fix for now...

Good product, I didn't need a lot so I was happy to find the smaller bottle.

Works great!

Not fixing the jack problem still not working

Absolutely incredible product! My floor jack had been slowly leaking down for months and I was ready to toss it and buy a new one. Then I found Bar's Leaks Jack Oil with Stop Leak, and what a difference it made. After topping off the fluid, the jack lifted smoothly again and held pressure like it was brand new. You can see the improvement right away. No more creeping down and no more puddles under the cylinder. The stop leak actually works, and the hydraulic action feels solid and responsive. For such a small bottle, it’s pure magic in a can. I honestly didn’t expect much for the price, but this product exceeded every expectation. It’s easy to pour, works fast, and saves you from having to rebuild or replace your jack. I’ll be keeping a bottle of this in the garage from now on. If your jack is leaking or losing lift, don’t waste time. Get this! It’s the best fix I’ve ever used for a hydraulic issue.

Works as described.

Our 20 year old jack stopped working. While perusing ads for a new one, he thought "hmm, hydraulic fluid is way cheaper"...the fluid worked perfectly and our hydraulic jack is now working as good as new.

Fixed my leaky pump