I had a small leak in the head, on a Vespa GTS 300, every day I was topping up coolant. It's been a month since applying the sealant and it hasn't lost a single drop.

It didn't do anything for me, it just filled the system with some small brass-colored particles... It kept leaking water. Maybe it wasn't suitable for my problem.

I tried it without any particular results! In fact, after almost two months, the radiator's small fridge came off in my hands (the reason I bought it)! Maybe there was some air trapped somewhere, who knows.

On an RD 350 LC engine that had a small leak, I put 3/4 of the liquid in the plastic container and after 30 km the leak was gone.....!!!!!

Used on an Opel Agila 1.2 after the mirror gasket had been changed twice and still the same water was getting into the oil. After quite some time, about 3-4 months, the white residue on the cap stopped appearing. Used according to the instructions. Duration 1 month now and it still remains clean

I applied it, the leak from the broken screw in the pump stopped, but then it leaked again and I used another product and I am waiting to see the result. Anyway, the product seemed quality to me!

It was producing a white cream at the oil fill cap, and when I poured in the k-seal, the cream disappeared

I had water on the passenger mat and fogging on the windows... Leak in the radiator heater, that is! It was solved as soon as I used it!

I have had it for two years in a Mercedes C/180, it works perfectly, no leaks at all, I used to add 1 liter of water every week, as soon as I installed it, after 2 hours it was done, I never added a drop again, I have peace of mind, it's worth the money!!!

I had an issue with a 20-year-old car with the internal heater, it was leaking coolant onto the car's carpet. The leak has completely stopped and of course, the intense fogging of the windows that I couldn't overcome has also stopped.

The workshop put it in the water radiator. The car was losing very little from the collars, the radiator and the radiator base. They assured me that it will not lose water again because where it leaks it seals like cement. If it leaks again, we will have to change whatever is leaking.

After 40 days unfortunately the radiator lost 1-2 liters of water. I think it's not working

Corsa d had a gas leak in the engine block, I fixed it and so far it's working well, only time will tell

I thought it was good, so I bought it too!! In my case, unfortunately, it didn't work!! The refrigerator in my car (Toyota Carina) had a leak, I poured the whole container inside as I should and let it work for a while, but unfortunately, the leakage of the coolant continued for the next few days until I finally changed the refrigerator and relaxed!!

I also bought this product but I was skeptical about its use. I had a leak somewhere and I had to refill the coolant every week. After I put the product in the car's refrigerator, the leak stopped. For about 2 months now, I haven't had to refill the coolant at all.

Also, before using the product, the engine operating temperature was around 92-98 with the radiator fan constantly working. Now I see the temperature at around 80-87 when the thermostat opens and the radiator fan only works when I am stopped in traffic for a long time.

P.S. The refrigerator still works properly without any leaks five months after using it.

Very good product. I put it in a leaky refrigerator, which used to ask for water every morning, and now I have forgotten that the refrigerator is leaky. I have saved, for now, the cost of replacing the refrigerator (70 euros and more)

Crack in the engine block at a point where it was losing a lot of water and overheating quickly. After using k seal, I have driven 1200 kilometers without any problems. Truly miraculous! Update: After 10,000 kilometers since using it, the car is working flawlessly from the point where it was supposed to have an engine replacement before using it.

Successfully fixed the hole in the refrigerator. After two months, there were no issues with the radiator or the gas. It even stopped a small gas leak in the lung. I am waiting to see what will happen in the summer. Maybe the entire cooling system will need to be replaced. Passat b5 2004. After eight months, a new leak appeared. I added it again. The leak stopped. It has not caused any problems in the car so far.

The car had small leaks in the water pump and the head. While at first I was skeptical, I used kseal. And yet, it worked! I highly recommend it

I was very satisfied! I solved my problem saving a lot of money!

Excellent product!
I had a very serious problem and it was solved immediately!
I saved a lot of money from repairs.
I highly recommend it...