In a 2005 Nissan Almera, it made it feel new; in a 2004 Ford Fiesta, it did nothing. It is obviously what problem exactly the engine has!

It does what it says at least for me who has the Mercedes E200K (22 years old with 300k+ km) I use it 2 times a year and I am satisfied.

We installed it in an Opel Astra 1.4 and it worked for the same mileage that we were using about 500ml, now nothing...

I see a big difference in oil consumption. I drive many kilometers a day due to the distance of my work and I noticed an immediate and significant improvement.

I tried this product and my car still burns oil, I don't know how much this product worked

terrible product, in Astra h, which had a small leak, after I added this specific product it stopped existing. I will put it back in the next oil change

Excellent product for a 30-year-old Nissan Micra with significant oil leaks, and with other sealants I had used that did nothing. This one stopped the leak completely in 6 days. I don't know how long it will last, but I believe that with each subsequent oil change, I will use one of these, and I will probably be free from this problem. For now, 5 stars, and I highly recommend it.

It did a real job, from leaking everywhere, it stopped completely. There are still oils in the engine that leak but the situation has improved by 85%

Used 2 times. The first time there was a decrease in oil consumption for a short period of time, but it returned to the initial state. The second time, I did not see any difference.

I don't have a clear picture but I think it did something...
Edit 19/09/24.
In the end, it probably did a very good job because several thousand kilometers have passed since then and now the oil consumption has doubled.
I will try it again...

It does a very good job. It's perfect for engines that burn oil and not only. Especially for German cars.

In old cars it does what it promises. I used it preventively in a car with 260,000 km which had started burning oil and I saw a big difference in oil consumption.

I have a smart 450, it had an oil leak from the head into the combustion chamber, resulting in changing the spark plug in cylinder no1 every 50 kilometers. Changing the gaskets required engine removal (costing over 200€), so I tried this product. After 100 kilometers and a change in both spark plugs of cylinder no1, the leak stopped, fuel consumption decreased significantly, and engine noise reduced. Truly, the product is very good.
Update after 1,000 kilometers: the car seems to have no problem, I removed the top spark plug for inspection, and it was like new.

The product works for what it claims. I have done about 250 kilometers and already half of it started to burn, which I did not expect it to do such a job

I have been using this product for over 5 years and it seals a small leak between the automatic transmission and the engine in an Audi A3. The manufacturer claims it has a lifespan of 30,000 kilometers, but that is not the case in my situation as I change oil every 8,000 kilometers. So I use it every second oil change. If I don't use it, the leak comes back. In my case, it activates after 300-500 kilometers and completely stops the "tear" from this specific gasket. I combine it with LM 4100 5/40.

After an accidental overfill with oil at the workshop, it was emitting smoke during startup for a considerable period of time, so logically gaskets etc. were affected due to the increased pressure. I added this product and after 1200 km, I no longer see any smoke during startup, even if the car remains stationary for a day. I believe it does the job as Liqui Moly is a very reliable company.

I tried it on Xsara Picasso 1.8 with 380,000 kilometers. The engine was leaking and I often saw stains in the parking area. I also had relatively high oil consumption (which is logical with so many kilometers). After 1000 kilometers, the stains almost disappeared and the oil consumption has significantly decreased. I believe it did the job.

It's fine for small leaks. If you have a 20-year-old Fiat or VAG and it burns 4 liters of oil every 7,000 kilometers, don't expect anything significant

I was amazed with the result from the first day. My car's exhaust stopped emitting white smoke (JEEP GRAND CHEROKEE 4.7 /2001 /240,000 km /LPG). I recommend it.

It was used in two consecutive oil changes. No difference was observed in terms of oil leakage restriction.

It does the job. Small leak at the base of the oil filter in a FIAT diesel with 200000 km. It stopped after driving 500-700 km.

I put it in a Seicento sporting 1.100 with 144,000 kilometers, 2001 model.
Due to the age of the car, despite being well-maintained, I had a non-continuous oil leak from the head, but as soon as the product was applied after 1,000 kilometers, the results satisfied me. The leak is gone!
It significantly reduces oil consumption!
A very good product, especially for its price.

It works. It significantly reduces oil consumption in Ibiza 2003. It does not create any other problem.

Quite a good product, for small damages related to valve seals and various other areas made of nitrile that suffer from high temperatures.
The detailed information about the product and its composition can be found here: https://sichdatonline.chemical-check.de/Dokumente/566/7143_0016_09-07-2018_EN.pdf

I used it in an overfed vehicle without any issues, and it generally stopped emitting smoke during startups after a long time at idle, indicating damage to the valve seals.
I should mention that it does not repair the valve seals or replace the necessary work. It simply buys you some time until you can make the appropriate repairs, which may potentially be costly.
With sensible use (e.g., approximately 150 ml in two doses and after 1000 km oil change), the product performs well.

2 times I used it with an oil change, it reduced oil consumption to zero. Amazing (Peugeot 307 1.4 16v)

No star for the reason that it almost destroyed the engine and overall the car of my wife. The oil turned into mayonnaise. It's like it burned a gasket. The product is dangerous for the engine. In order to get rid of all this from my Opel Corsa C 2003, I changed the oil twice with a gasoline additive in the engine, in order for the metals to return from the deposits. Guys, hand on heart, stay away from this specific product.

It eliminated the small leak that my properly maintained car started to have due to its age. My car is 16 years old (as of 30/05/19), naturally aspirated (without turbos, etc.) and has covered 200,000 kilometers. The product also contains silicone that renews O-rings and gaskets. Initially, I noticed an increased idle, but after 2,000 kilometers, everything is back to normal. Note: I change the oil every 5,000 kilometers, so any change in RPM is noticeable.