in combination with Liqui Moly DPF protect and a little ATF + mineral 2T oil, you have maximum protection for the engine, pump, and injectors.

In a VW Polo 1.2 TDI, the engine response improved significantly.
Also, the rattling noise was reduced.
Very satisfied.

It does what it says... reduces noise at idle... runs smoothly like a petrol engine... a small decrease in consumption by 0.5 liters in the city

It has made a difference in how the engine works. It also became smoother and I noticed a difference in consumption, 0.3 L per 100km

Golf 7 1.6 tdi. At idle it was shaking. I have been using it for 1 year now preventively at every fill-up. 1 ml/1 lt regular diesel. The shaking has stopped. The downside is that it does not have a dispenser. I use a syringe.

I have been using it for a while and I am absolutely satisfied. From the first time I used it, the engine noise at idle and fuel consumption noticeably decreased.

I have been using it for almost two years in a 2011 VW Polo 1200. I haven't seen huge differences; I use it preventively along with Avio. So far, the car hasn't had any issues, so we continue

Amazing product, I use it very frequently! I definitely buy it every time and use it in every tank refill!

I have been using it for about 5 years (and the tank cleaner) and for 4 consecutive years I added it with every fill-up. What I have to say is that I haven't noticed any difference in throttle response nor in consumption. Just to mention that so far I haven't had any problems with injectors and pump (of course I always use eko avio) and it has "logged" about 90,000 kilometers with the cleaners out of a total of 300,000 for the car. I will continue to use it along with the other cleaner as a preventive measure, but every 3 fill-ups.

It does what it needs to do, I use it occasionally every 4-5 months.
I think it's one of the best additives on the market.
Now for those of you who have issues with fungi, oil pump, or damaged injector, etc., it can't fix the damage, otherwise, there wouldn't be any mechanics.
The product works preventively, and it's good to use some cleaner periodically.
The only downside, so to speak, is that there is no measuring device so you know how much quantity to use.
In 50 liters, I happened to pour half of the additive from the small package (while according to the instructions I should have divided it into three fillings) everything was fine, so don't stress too much about the accuracy in ml.

Real performance enhancer. I have made detailed comments on another package of the same product, about 3 years ago. Noticeable increase in response and agility, but also a reduction in smoke. Just don't overdo it, because it tightens the engine with increased dosage. Follow the dosage indicated on the outside, and you will see a very pleasant improvement in your car's engine. However, you won't see an improvement in consumption...

Excellent product, I have the Yaris D4D 2008 and I can say that it has significantly reduced fuel consumption, as well as the noise at idle and while driving. I had tried once not to use the cleaner - booster and I noticed a difference in both consumption and engine noise. Personally, I recommend it, I believe it is the best investment.

Very good addition the only thing I can say for sure since I do over 100km per day due to my profession is that it reduced consumption by about 0.4-0.5 so it definitely does the job and also stopped the car when I pressed it to emit smoke so it's worth it and it fills a lot with 1 liter

I consider this one, along with the Stanadyne Performance Formula Diesel Fuel Additive, to be top-notch. I might give a little extra credit to Power Service

The best thing I have ever used... The first time I put half a bottle. Then 100ml in each refill. After 3 tanks, the check engine light that was on for months went off, the smoke that came out from the back when you pressed the gas pedal disappeared, and the car became much livelier. I have now made it a habit to put 100ml in each refill.

It was purchased as recommended by a friend who has been using it for years. From the very first time I used it on a 1600cc petrol engine with 120,000km, I noticed a difference. Just read the instructions to ensure you add the correct amount proportionate to the fuel liters

I have been using the product for a year. I had a problem with a Renault Clio diesel from 19. I bought it with 30000 km. It started to have interruptions when the blue light went off for one or two kilometers, without showing any error. I note that the car was idle for 1.5 years (in a shed). At first, I used the product in a ratio of 2.5 ml per liter together with the Clear-Diesel fuel & Tank Cleaner in a ratio of 3ml per liter (in the same tank). I received approval via email from the company in Thessaloniki for three refills. It really cleaned everything. Since then, I have been using it continuously in every refill in a ratio of 2.5 ml per liter and every three months, together with the tank cleaner, in a ratio of 3ml per liter for one refill.

Very good and effective from the first use, 15-20ml in 25-30 liters of oil did the job, don't expect miracles, it simply improves the engine's performance, it becomes more robust, more eager, and I saw a decrease in average consumption by 0.2 liters/100 km on a mixed route of 500 km. All this on a 15-year-old vehicle with 400,000++ km. As for the packaging, now that they "complain" in the reviews, they are partly right but there are many solutions, you can use a large syringe or a small water bottle, etc. However, it would be good if the product came with a dosimeter, since it will rarely be used all at once.

Very good product. The car goes better. Now, if it does the rest it claims, I have no opinion because I haven't seen anything.

The cleaner is very good, I use it every 3,000 kilometers. It does everything it says. I give it four stars for the packaging, which is unacceptable. It smelled up the whole car, so I left it on the balcony so that the room wouldn't smell

It does the job as promised. I don't know if it's cost-effective and necessary for continuous use, but for occasional use, especially for travel or long distances, I highly recommend it. There is a noticeable difference in fuel consumption and vehicle performance.

The annoying noise of the engine stopped and I have the impression that the consumption has also decreased. However, it smells really bad.

The performance has indeed improved significantly, which I didn't expect! The engine is much smoother, and the product does a very good job. However, the packaging is very poor, so be careful with the syringe!

I was expecting to see the results in practice and then write a review about the product.
The car really changes completely, in terms of noise, acceleration, and overall you can hear it working like clockwork.
If there is a difference in fuel consumption, it is minimal. Also, I never had any smoke, so I don't have an opinion on that.
And even if you use fuel of mediocre quality, this will balance the situation.
I will definitely continue to use it.
(Regarding the method of use, it could have been more user-friendly because now you can only do your job properly with a syringe.)

I use it in a Toyota Auris d4d 1.4 and I noticed a much better response on the gas, it reduced fuel consumption during trips (in the city it's the same) and it does what the product claims! I will continue to purchase it and I will come back!

Unacceptable packaging, leakage is guaranteed no matter how you close it... Besides that, on a smart cdi 54hp, things are disappointing!!! Dramatic increase in consumption, even with the exact same fuel measurement... where without the additive the car made 183 km with 8 liters of fuel and with the additive it made 134 km. It doesn't produce smoke anyway, but there is no change in noise either. On a multijet 120 Hp, there is no change in noise (it doesn't produce smoke either, and since the demand for burning particulate matter literally coincided with the use of the additive, I didn't see any better or faster successful completion of the process compared to without the additive, it was noticeably slower) and so far there has been no improvement in consumption. Waiting for two other multijet 95 HP, a Renault 130 HP and a Nissan 165 HP...

I have a Dacia Duster, 240,000 km and for 5 years I was experimenting with cleaners, until I bought it 2.5 years ago. The mechanic recommended it to me. Since then, I have been carefree, without any warning lights, without finding any mold. Better performance at low revs, fuel economy only on non-urban routes.
To see results, it requires the initial dose and 2-3 maintenance refills with "quality" fuel. It changes the car.