I put it in new oil and it produced blackness, but I didn't see any difference in oil consumption reduction (I used it 1.5 months ago)

Installation was done on a first-generation Octavia Rs in combination with the valve cleaner from the same company. The difference was quite noticeable, the engine "calmed down," fuel consumption dropped significantly, and it accelerates much better from low revs. The engine had been idle for 8 months and had many internal deposits, so it did the job it needed to do and then some.

Everything works fine with the product and I used 10-40 oil and noticed some differences before using 20-50. 4 stars for its price

I put it in an Opel Vectra B with 340,000 km and it did the job. It doesn't burn as much oil and it works better.

In Alfa Romeo 147 gas with 170,000 km, first time using a cleaner. It reduced the fires and stopped burning oil! Before using, it burned 0.5l every 2-3000 km. I highly recommend it, especially for cars that have not had similar maintenance before

I have the 2005 Seat Leon with 106,000 km. I had searched before I did the service because it was showing something like oil and moisture in the oil cap. Completely by chance, I saw this product and also saw the positive comments. I went to the dealership before buying it and asked them if it works, and they recommended it to me as well. The noise at idle has decreased, the engine is quiet and the car drives amazingly on the road, even in 5th gear at low revs it opens up. I don't know how this product did it, but what they write below is truly amazing!

Before changing the oils I saw my oils and they were blonde to dark... As soon as I put the additive and let the engine run for 15-20 minutes the oils were literally black like pitch... I tried it after buying the car to be as sure as possible on my part. Peugeot 208 2018
P.S. Be sure to also change the oil filter afterwards to put new oil.

14/4/2024
*Bonus: Some people after using the additive flush the engine with a new cheap oil and then put the new clean oil with a new filter. I consider it a bit excessive but whoever wants can do it...

The product was installed in a personal car, an Ibiza 1.4 BBZ with 145,000 km. I change the car's oil every 10,000 km. The engine with the treatment works more smoothly and the acceleration is like it used to be. It was done with a combination of Motul 4100. To properly perform the process, you need to drain the engine oil. Install cheap oil along with the product for half an hour. Then drain the oil and the oil filter. Let them drain well, put in the new oil and oil filter, and you're ready. When I drained the oil with the chemical, I put it in a cut piece of concrete and noticed very small particles that broke when I pressed them. Possible deposits in the springs. I have driven 2,000 km and the oil is still clear. I will recommend it to every customer to do it. The price is a bit high, but you get what you pay for. I hope I helped.

Fields put this chemical that and when you change oils mix it well. But the engine must be warm at normal temperature, and turn it off when you pour it, put it back in gear and let it idle for 10 to 15 minutes I left it for about 15 minutes, yesterday I did a service, and this chemical does the job works. Cleans, I recommend it with closed eyes

I put it in a Fiat Seicento with 150,000 km. When I opened the cap where I fill the oil, the blackness (sludge) was visible inside. After using the product, it had disappeared, so it did the job.

Tested on Peugeot 3008 Diesel 2011 and KIA Picanto 1.0 mod 2006. In the 3008, after use, it was running black liquid and wet tar from the crankcase when the cap was opened at 170 km, probably due to fuel. The first time I saw the new oil we put in not turning black immediately after starting the engine. In worn-out engines, it requires in every subsequent oil and filter change until the engine is significantly cleaned. In the KIA with 390 km, with the first application and after it also released black oil and worse tar than the 3008, the color of the engine and its performance are like day and night, and it sounds almost like a new engine now, as the mechanic said. However, it requires an additional 2-3 applications in the next services. Note that in both cars, after the application, we opened the crankcases due to gasket leaks, which were naturally cleaned by hand.

I put it before the oil change in a Fiat Punto 1.2 8-valve that was burning oil and had low compression. Oil burning at a rate of half a kilo per thousand kilometers. Since the change, it has stopped making strange noises, performed very well at low speeds, and so far I have driven 700 kilometers without burning a drop. I didn't expect it, I was planning to change the engine, but I decided to give it a try and it worked. I also noticed something else that shows that it really cleans the engine: the oil level indicator, which used to be black and couldn't be cleaned with a cloth every time I checked the oil, has cleared up since the change.

We put it before changing oils due to a change in brand and viscosity (from Fuchs to Mobil and from 5W-30 to 10W-40). It must have cleaned the engine from the old oil. The worrying thing is that it must have cleaned it so much that afterwards I could see smoke coming out of the exhaust due to oil burning. It would have removed a lot of gunk and found its way into the new oil "space" either through worn valve gaskets or through a broken/stuck piston spring, entering the combustion chamber and burning with the fuel. I don't know if it's the cleaner's fault or the Mobil oil's (which shouldn't be the case because it was thicker as an oil) for the smoke in the exhaust, but in the first phase I will change the oil brand and I also added the Liqui Moly Oil Smoke Stop Oil Additive 300ml. I will do the required 800-1000 km and see how it goes.

In my Hyundai Elantra car, I did not notice any difference in the color of the oils. Of course, I am very regular with car servicing, so I give it 4 stars ....

Without being an expert, what I understood as soon as I put it in a twenty-year-old car and in combination, of course, with a fresh oil change and having the car for several years in my possession, is that it was lighter and more relaxed. Again, I say that it's not something super wow that you understand driving differences, but I imagine that it refreshes the heart of the car, meaning the engine. The dealership mechanic recommended it to me when I gave it to him.

I gave it to the mechanic to use before the oil and filter change on my Ford Fiesta Diesel with 220,000 kilometers. At first, he looked at me strangely. When I went to pick up the car after the service, he told me it's the best thing he has ever seen. He drove the car before and after the service and noticed a noticeable difference and smooth engine operation. He will highly recommend it to his customers.

I put it in my Mercedes Benz B150, the second time I put it in, when I took out the filter, I was shocked...
It was like it fell in sand. Half of its side had THE dirt. Now with every change, I first put this or the protect... But always first the cleaner.

In Fiat Seicento 1.100. I opened to remove the old oil after using this specific product and the hole got clogged to the point where it was just dripping little by little. I caught it with a straw and broke off the pieces that had probably come off from the engine and had blocked the outlet. At first, I was worried. But after the change, it immediately picked up speed and the engine was much more responsive in everything. Without exaggeration, there must have been 200 to 300 grams of sludge inside the engine. It definitely did the job.

I got into a jimny. After the oil change, the engine was running more smoothly and had more enthusiasm on the gas.

Good morning!! I used the product during my last oil change. I have a VW GOLF5 that is very well maintained with 230,000km. Since I put the product in, in the first week I have noticed the following:
1. The engine is completely quiet.
2. The car does not "rattle" at low speeds with high gear ratios, for example, at 5, but the engine has a "gentle" sound like when it is new.
3. Increased compression, meaning the car is 75 horsepower and at 2,500 RPM in 5th gear it used to reach around 75km/h, now it is at 85km/h.
4. The cold mornings when I put it in gear used to have a smell (fumes) for a little while, but that has stopped now.
5. At idle, the car had a slight tremor, but without the RPM dropping, that has stopped.
6. The car burns oil, exactly 1 liter per 2,000km, so I cannot have an opinion yet. I will see when I reach the kilometers

In Citroen Xsara 04' 1.6 nfu, I used it at 100,000km, the car changes oil and filter every 10,000km (total 10-40w). I noticed a difference in the color of the oil, I removed a few ml before using it and the oil was brown in color. After use, it was black! In the few kilometers I have driven, I believe that the engine runs smoother. I used the product because I want to keep the engine in perfect condition, so I cannot say if it solves any problem.

It definitely does the job, I just can't know exactly how much. Personally, I use it every 4 changes or 40000km.

Perfect product. After using this, I changed the oil. The car feels quieter and I also added the Cera tec from the same company. IBIZA 2006 1.4

I used it on a gp800 with 31,000 km. The sound of the exhaust changed, all the small noises the engine had were eliminated! It really did the job!

I have used it twice on a diesel engine with 230,000 kilometers. It cleans and shines internally. The oil comes out black and there is water after its use. Attention is needed to change the oil filter after use and new oil

Expensive but good product. I used it on a Honda Civic 96 and a Daihatsu Couore. The old oil comes out completely black and the engine really cleans up from residues!!! The engines of both vehicles perform almost like when they were new..!!! The acceleration has improved and the compression seems to be better although I didn't bother to measure it. Don't forget to change the filter as well.

VW Polo 1998 1000 cc
I couldn't keep up with filling oil (10-40), the engine was knocking somewhere and the mechanic told me it's just a matter of time before it breaks down, it needs repair. I thought, why not try this product, what do I have to lose?
The engine still knocks, but very little, barely noticeable. It's nothing like before, and now I only need to top up about half a liter of oil (5-30) every 1000 kilometers.
Honestly, I didn't expect such a difference before trying it, but this product really does an amazing job. The car has been running for a year without any problems, even though it was on the verge of dying!! The work it does becomes apparent as soon as the oil and this liquid come out, black sludge with bits of dirt!! It truly saved me, and I will definitely use it again if needed!!

I will give it five stars for absolutely no reason. I didn't notice any difference in the machine's performance before I put it in. After I put it in and added new oil, my Kawasaki Zx-6r 636 2006, believe me, when I put in cheap oil, the difference is very noticeable, especially in the gearbox. My oil was honey before I put in this liquid, it remained the same color when I put it in my engine, and after 100 km I didn't notice any difference and the oil came out with almost the same fluidity. In short, it didn't clean anything. I'm just giving it a rating of 5 stars because maybe there was nothing to clean since I am very regular in changing oils.