Very effective cleaning spray for carburetors, throttle bodies and valves. Its action is fast, easily removing residues from oils, dirt and deposits that affect the proper operation of the engine.

After use, the engine runs more smoothly, with better throttle response and a more stable idle. It also helps reduce “hesitation” and improve combustion, especially in older or more worn systems.

Application is simple thanks to the practical spray, and the 400ml quantity is enough for several uses.

Overall, it is a reliable and economical maintenance product that offers a noticeable improvement in engine operation.

The valve it has is convenient. Now, to tell the truth, the car did not emit smoke from the back and that really impressed me. What can I say, I don't know. I think it does its job as I saw it because I have used other similar ones.
toyota yaris 1.0 2004

It was an unfortunate choice not because of the product itself, but because the issue I had could not be addressed with such products. Therefore, my opinion is not objective. The issue is related to the engine light being permanently on the dashboard and a permanent fault in the EGR indicator on the recorder. So, either the EGR needs to be removed and cleaned, or it needs to be replaced.

As soon as you put it on and use it as instructed, you see the smoke it emits from the exhaust

I removed the Agr pipe and the Agr sensor, and with the Mannol tube, I removed all the carbon deposits and grease except for the ones accumulated at the two openings that had become one with the metal; there, it was necessary to use a wire brush. The tube is really helpful as it sprays the walls with force. A good tip for users, which works for all sprays. If you want to increase the spray pressure, before using it, immerse it in warm water for a quarter of an hour; when I say warm, I mean you put your little finger in and count to 30, and it doesn't burn you, that is, up to 35°C because after that it will go boom. Amazing product, I cleaned the throttle, Agr sensor, and Agr pipe.

Very good cleaner, I used it on the oil in the multiple intake and then after the turbo air filter, etc. After 10 minutes, the difference was huge, smoother engine operation, immediate gas response, it has nothing to envy from other well-known brands, besides Mannol has a big name but we don't know it... very good choice, on par with Liquid Moly with a huge price difference, Liquid Moly costs 25€€€€, Mannol costs 4.5€€€€€, same job

After the second application on a 1.9 diesel engine, I started to notice improvement. Don't expect miracles, but overall I am satisfied.
I am coming back with a new review. So initially, I made a mistake in usage. The application should be done on a warm engine and not on a cold one like I initially did. So after proper usage on 2 vehicles (Kangoo 1.9 diesel and Doblo 1.3 multijet), the difference was noticeable. I repeat, don't expect miracles, as the best cleaning requires EGR removal. In the photo, you can see what came out of the Fiat's exhaust during the application at low RPMs. Imagine what happened when I took it on the highway to open it up.

I used it on an Audi A4 B8 and indeed I saw that the intake, at least initially after the MAF sensor, was spotless!! Then I used the carburetor cleaner, from the same company which is a bit stronger, on the intake manifold to clean the deposits on the valves. Now I feel that the engine is running smoother!! I recommend it!!

I used it on an Opel Corsa C 1.3 CDTI 2004 with 217,000 km that has never had its intake-egr cleaned. I can say that it did a pretty good job in cleaning without needing to remove any parts except for a clamp! With short sprays from the intake pipe after the MAF, it removed a lot of blackness and soot from the exhaust at 2000 rpm (the car always uses Shell V-Power Diesel and Wurth additive regularly). After cleaning and driving for 20 kilometers at high rpm, I can say that the car runs smoother at idle without any hesitation and more relaxed, it doesn't get clogged during acceleration - it took in more air. Very good for its price and for the result! I will definitely use it with every oil change for better results.
P.S: It does not replace the solution and internal cleaning of the intake manifold and EGR, but it is very easy to use, doesn't cost much, and there are visible results in cars that have never been cleaned.