LIQUI MOLY Gear-Oil Leak Stop | 50 ml | Oil additive | SKU: 1042

I own a BMW 430d and recently noticed oil collecting underneath the vehicle. After checking it over, I found it was seeping from the rear differential. My initial thought was that the drive shaft seals were likely worn and would need replacing, so I took it for a proper inspection. Before going ahead with what could have been an expensive repair, my mechanic suggested trying a seal-conditioning additive first. I decided to give it a chance, and the improvement wasn’t immediate, but over time I started to see a real difference. The leak slowly reduced and eventually stopped altogether. I’ve since checked the oil level again and it hasn’t dropped at all. From what I understand, it works by helping to restore and swell ageing rubber seals, improving their ability to hold oil. In my case, it seems to have done exactly that. What could have turned into a costly diff repair has ended up being resolved for a fraction of the price. The underside of the car is now dry and everything is working as it should. Overall, I’m genuinely impressed — it worked far better than I expected.

I don't review often, but this deserves one! I had a significant leak in a front diff, possibly caused by water contaminated oil after having played in some deep floods in my 4x4 a few months previously. The leak was severe, literally puddles of oil overnight or even just parking for an hour or two. The leak was coming from the pinion shaft seal. To replace the seal involves removing the diff from the car, in my case (Grand Vitara 115k miles), the entire front suspension subframe assembly needs to be removed in order to extricate the diff; a huge job, not a job I could comfortably complete myself at home despite being very experienced in car mechanics. Even replacing the seal itself is fairly involved. I would imagine I'd be looking at a bill in excess of £500 at an independent garage, main dealer 1K plus. Anyway, I drained the old contaminated oil, refilled, ran it for a few miles, drained again, then refilled including a tube of the Liqui Moly. Results were slow but over the course of 4 weeks the leak began to lessen and ultimately stop completely. I've topped up the oil once in that time and bought another tube of the Liqui Moly as I could see that it was working and I wanted to give it another dose. However, I removed the fill plug again tonight to squirt in another tube (for good measure) but the level this time was exactly the same, it's lost nothing since the last top up (approx 2 weeks ago). No more leak, at all. This is incredible stuff. Any bad review for this is probably unfair and for an unrelated issue, this is designed to regenerate the condition of rubber oil seals. It has done exactly that. A lot of money saved, thank you Liqui Moly!

I didn't think it would but it does. Much reduced gearbox leak in my classic Stag. Highly recommended.

Still getting a leak ,hard to know if the casing is beyond repair or the oil stop isn’t working..still topping up with oil..but can’t be buying a tube of this at every top Up either

For small losses something does

Does wot it says. Protects metal surfaces, even packs out wear and tear on older engines. I always use tbis for engines and gearboxes. It works for me.

Slight weep on bmw 116 d differential, put whole tube in and 3yrs later still not leaking

Great item good price

Bmw x5 e53 Differential hinten hatte ich massiven öl Verlust aber das mitel hat super funktioniert gestern nach 7000 tauschen Kilometern habe ich es auf der Hebebühne kontrolliert und kein Öl Verlust mehr ich bin zufrieden mal sehen wie lange es noch hält werde öfters mal nachschauen super

I bought it for my Xterra which had a minor leak, garage quoted me 1000aed for labor only the leakage was around 1 liter per month. After using this product the the gauge showed no leaks. The import thing to note is that it takes around 15 days to stop the leakage.

Har fungerat förut.. så det ska den troligen göra även nu

This stuff is amazing!!! Simply incredible what it has done for the truck! Used it in a 07 Honda Ridgeline that’s had a power steering issue for well over 5 years. Having tried multiple different brands of power steering whatever products and nothing fixing the issue or even alleviating it a lil…I came to the conclusion that it needed a new pump or a complete system overhaul…see I never saw a leak but I couldn’t get my boy to take it to a shop..I know but he just wouldn’t anywho…I had found Liqui Moly and their Insanely Crazy Bad A** products and used a couple other products in my car and was surprised at how well they had worked so I when I saw this read some reviews and thought who knows maybe it help a bit…this because when you’d drive it , it was like driving a manual steering instead of one that had power steering. If you’ve ever driven a vehicle without power steering you’ll understand. It’s almost impossible to park or back out and forget parallel parking! So I figured it might help a bit but nothing like it did….i put it in the truck and WOW….simply…WOW….now it was about 75 to 100 miles before I noticed it but what a difference….its almost like a new power steering system completely!! My boy was thrilled!! And was a bit shocked I’d say….Tbh idky I’m so surprised …it seems like all Liqui Moly products are like this…beyond top shelf…better quality than anything on the market…no matter what product it is they are the best!! This is one company that has nothing but superb quality products!!!

1回目の注入、30分作業をして翌る日に確認したら、もうギヤオイル漏れが完治していた 良い商品をありがとうございました。🫡