I read after purchase unfortunately that it is intended for professional use. Some people pour it into the tank. I preferred to give it to a professional, I did not use it.

Red cap means it goes into the diesel tank. It has an effect with linearity and economy lasts for about 3000 km.

I haven't seen a difference. I tried it and drove on open routes so that it could also allow for prolonged burning.

I didn't put it in the machine it should go in, but I poured it into the tank; I didn't see anything worth mentioning!

Usage in Astra diesel. You will immediately notice a smoother operation of the engine.... I believe that one bottle is not enough, but with 3-4 consecutive ones, it helps extremely well.

It takes experience to understand the difference.
Anyway, it is needed for diesel engines, especially in Greece where the fuels are adulterated everywhere!!!
It is good for the car to be pushed on half-hour trips at 3500 RPM in a straight line once a month...

Honest!! It seems to do its job!! A lot of smoke after application @! Don't be scared, it clears out!

Excellent. With the special nozzle, I injected it directly into the tank (Ford Focus diesel with 110,000 miles). Consumption reduction by 0.8 liters, which has been maintained. More lively acceleration from the gas pedal.

Amazing product. Reduces consumption by about 0.4 to 0.5 liters per hundred kilometers. Changes the sound of the engine. You realize that the car is working better. I use it on a 2017 Renault Dci 1.5.

Some write in the comments that their consumption decreased after using the cleaner. In my 3-year-old car, I saw an increase in consumption from 5.9-6.1 to 7 liters. Of course, the minor engine malfunctions it had are now gone.

He did his job. A light had turned on, probably due to some debris in the fuel. The indicator did not appear again and the engine performs better. It pulls more easily.

I used it on a 2010 VW Polo 1.2 TDI with 490,000 km. Generally, I maintain the car very well, but I decided to try this product for some suspicions I had about excessive idle consumption (it was 0.3 /100 and increased to 0.6 /100). The truth is, after I put half of it in a full tank, the consumption dropped to 0.4/100. I don't know if it indirectly helped, but I believe that diesel needs its occasional booster. I recommend it for occasional use.

Very good
It did not hold idle. After 20 kilometers, it stalled

Tested on a car that had a starting problem. It picks up speed with a slight hesitation. Fuel consumption has decreased.

Very good product. It does what it says. 500 ml in a full reservoir according to Liqui Moly's instructions

It logically does its job internally. I applied it to a Mitsubhsi asx with 156,000 km and I did it purely preventively. What I noticed is a more linear engine operation

It was purchased second-hand. 1.5 dCi Twingo (diesel turbo 85hp) with 120,000km from 2013.

With the tank at 3/4, a definite improvement was observed: a decrease in average consumption from 5.9 to 5.4li/100.
After it was installed, I drove 100km on the Attiki Odos and Penteli to test it.

The engine was already functioning well, so I won't note anything else. Objectively, it was definitely worth the money.
When I bought the used Twingo, it was at 8l/100 on the computer, and now with 2 Redex cleaners plus Liqui Moly... we dropped to 5.4l,
All of this in 1000km.
I hope that with the upcoming engine remapping to 115 horsepower, it will go down to 4.5l, which is the ultimate goal. Difficult times for gasoline

Very good product,
It does exactly what it says.
In a 106 Rallye 1.3, After 26 years, I sent the injectors for cleaning and they found them almost perfect.
It has done 240,000km so far,
When it reached 200,000km, I started using this specific product every 10,000km

It probably worked positively, although it was simply added to the fuel, reducing the noise from the injectors.

I put it in an Alfa Romeo Mito 2018 model with 49,000 kilometers. The truth is that the car had no issues and I put it as a preventive measure. After 500 kilometers, the fuel consumption dropped to 4.9 to 5.3, whereas before it was at 5.5 to 6. I also noticed a smoother engine operation during cold starts. I gave it a rating of 4 because I don't know how long it will last.

You will not notice any difference even in a 15-year-old diesel, but generally the fear of malfunctioning injectors is reduced with the use of such products. Do not expect to see any noticeable results

Used in a Hyundai i20 1.1crdi with 140,000km. From 125,000km until usage, the consumption gradually increased from 4.4lt/100 to 5.5 - 5.9lt/100. I used it with a tank of about 10lt of diesel. The consumption started to decrease and has returned to 4.4lt/100. Second refill now and it continues to stay low, the consumption. I was about to remove the injectors for cleaning, which would cost around 200€. If I cleaned it for 8€, we'll see...

I didn't see any difference in the engine performance, the only thing that changed was the sound of the car when using the product. Afterward, it returned to normal. Easy to use though.

I cannot yet know if it does the job it promises, I used it as a preventive measure without having any issues with my engine. I put it in my car with a full tank (very easy to apply) and I hope it maintains and cleans the fuel injection system of my car's diesel engine, this will of course become evident in the future regarding the job it did.

Update 11/11/2020: Significant improvement in power and torque in the diesel engines of two cars that I used it on, especially in the one with the highest mileage (70,000). The difference compared to before was more than noticeable, the car changed for the better in terms of power and responsiveness! I will definitely use it again in the next service!

The product should be placed in the special device jet clean and sprayed into the intake with pressure. This is the correct way.

I also changed the oil filter at the same time. The problem was fixed immediately. Probably contaminated fuel. Anyway, it didn't harm me, but it's difficult to say that it had a drastic effect.

A very good oil cleaner that I noticed a noticeable difference after burning a 50-liter reserve.
The price is the best on the market.
Keep it up.

I can't say that I saw any significant difference with its use, now whether it does what it promises, I don't know..... Hence the simply good rating I give...