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!

A great product that works from a trusted brand.

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.

Works great!

this is excellent product works great on all hydraulic things.

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

Works great as jack was faulting, so bled dry and replaced with this pil and works great again.

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