LUC10011

Works ok will slow a leak down for a while not a permanent fix however

I had to leave a review for this. My power steering leak was so bad it blew through 2 rubber boots around my inner tie rod! I replaced my pump and line but it was my rack and pinion that was leaking so unbelievably bad to the point I would lose almost 1qt a day out my rack seals and Into the boot that just exploded twice. Now I ended up using about 6 quarts of this lucas power steering fix, they recommended that 2 bottles should be enough but my leak was so bad it didn't stop it and I went ahead and just kept using this product because when I added regular power steering fluid I was leaking almost a quart a day. Using this lucas power steering fluid cost me a few dollars more but it also slowed the leak to where in the long run I was spending less on this product then on regular power steering fluid. I basically just kept adding this product and it slowed more and more over time until it finally sealed it up. A happy accident as I had no hope after there recommended 2 bottles would do it, but not there fault my leak was really bad. More like a hole!! But it actually stopped the leak and I have not had to use it anymore after 6 bottles. Completely worth it . I will say it's hard to pour in the winter so keep it warm. And on start up on cold winters the power steering pump makes some noise for a few seconds because it's pretty think in the winter. I'm sure it will stop once I'm able to add regular power steering fluid again since the pump won't have to work so hard to suck in the fluid. But seriously I don't care. Amazing product. Thank u

Great deal would recommend and buy again

This product, like most other Lucas products, has a mixed bag sort of reputation. It's often touted as a last-resort sort of fix and it's often stated that it would be cheaper to just 'fix it right'. However, when our Mercury Mountaineer developed a leaking power steering pressure line, due to what I assume to be a bad o-ring, this product did, after about 1.5 quart bottles, start to really slow the leak. Specifically, we went from losing enough power steering fluid in a 10 mile trip to have lost all power assist to being able to drive 2-300 miles without losing enough to even notice any pump noise. It definitely reduces pump noise, it definitely, eventually slows leaks. It's definitely thick and that's probably where a lot of it's ability comes from, sheer viscosity. Overall I would recommend this as a last-ditch effort or temporary band-aid sort of fix for leaks. Some other reviews have even reported that it let them run another year on a previously bad or leaky pump. I can't say we had that great of success with it but it definitely slowed the leak.

Perhaps I should give it a lower score as it did not eliminate the leak fully, but chose to give it 5 stars, as it allowed me to drive this very old (2024) SUV for another year without having to replace the power steering. Adding power steering and this Lucas Stop leak significantly reduced the intervals betwen topping off. It wasn't a cure in my case, but it did help, granted it was a very old car with a power steering system that needed replacement.

(Review as of April 22, 2026) To start, I have a 2007 Audi A4 Quattro creeping up on a quarter million miles, with a fair share of problems that most cars might have at almost 20 years old and so many miles. Yesterday, out of nowhere, my steering wheel became kinda stiff, with a vibrating/rubbing feeling and sound. I checked the fluid level, and it was super low, which surprised me since there were no leak marks or issues prior. I topped it off, and just a couple of miles later, same issue. I’m on a budget right now and really don’t want to replace the rack and pinion if possible, so I looked around and found this. I was super skeptical at first for a lot of reasons: I wasn’t even sure it was safely compatible with my car, and we all hear about “miracle cures” that are too good to be true. I was desperate and figured I’d try it. This fluid is quite thick, much more than the PSF I was using before, but I guess it makes sense given that it needs to recondition seals. I sucked out as much of the PSF as I could, filled the rest with Lucas, and took it for a drive. I drove it for about 10 miles, and there were no issues with steering, sound, or feeling. I was shocked. I came home, checked the levels, and topped off the little bit that was missing. I will continue to update this review if there are any changes, positive or negative. For the money, this has got to be the best value I’ve ever gotten for automotive repair/tinkering. It’s not a miracle (because it doesn’t actually FIX the issue), but it’s pretty close, and you can’t really beat that. Give it a try before you spend a whole lot on the repair; you might be pleasantly surprised, as I was.

I’ll admit it—I was skeptical. Over the years I’ve owned more questionable vehicles than I care to count, and every time one of them started whining, groaning, or dripping on the driveway, I just assumed it was “character.” Recently, my trusty old SUV decided to add a squealing, stiff steering wheel and a charming red puddle under the hood to its résumé. Enter Lucas Oil Power Steering Stop Leak. I’ve used other “miracle fluids” before that claimed to stop leaks but really just made my garage smell funny. This one, though? Within a couple of days my steering wheel went from a full-body workout to one-finger smooth. The leak slowed to a crawl, and now, weeks later, I barely notice a drip. My car stopped groaning like a haunted house every time I parked, and honestly, I stopped groaning too. I’ve been using this for about two months now, driving daily, and I’m impressed. For a fraction of the cost of replacing racks, pumps, or hoses, this stuff is basically the automotive equivalent of duct tape for your steering system.

It did the job

nach dem nach und nach einfüllen von bisher ca. 3/4 liter ist die lenkung nach wie vor nicht dicht. der beschreibung nach soll man dann, wenns mit dem inhalt einer flasche nicht klappt, noch eine 2. einfüllen. geldschneiderei ?

Slowed and then stopped a ps fluid leak at the steering column seal where it connects to the steering rack on a 08 Nissan Frontier. Also used 3 years ago which worked until the leak started again. Used again and it seems to be working.

It does not stop the leak

Leaking rack seal, it works

Everything LUCAS works better. Pulled out the old steering fluid and replaced it all with Lucas. After a couple of weeks, there should be no more leaks. However, you should remove and replace the Lucas with fresh Lucas after about a month. Then, your power steering will work much quieter.