It does what it claims, namely it enhances fuel combustion and cleans the engine system. After 2 refills with regular gasoline from a good gas station and using the product at a ratio of 1ml per liter of fuel, I noticed a reduced consumption of 0.2 liters per 100 km and significantly less black smoke during acceleration. As for performance at speed, I did not see any particular difference. It is definitely worth its money.

It does a good job on the diesel engine, slightly increases horsepower (of course, not by 10 hp!!!), but in this specific car that I have (SUBARU FORESTER WT), in this specific engine and according to my (subjective) judgment, another equivalent product (which is also cheaper) performs much better, the following: https://www.skroutz.gr/s/14124623/Power-Service-Diesel-Fuel-Supplement-Cetane-Boost-%CE%A0%CF%81%CF%8C%CF%83%CE%B8%CE%B5%CF%84%CE%BF-%CE%A0%CE%B5%CF%84%CF%81%CE%B5%CE%BB%CE%B1%CE%AF%CE%BF%CF%85-473ml.html

Definitely does its job. I mean, it improves the performance of the engine. It doesn't give you 10 horsepower like someone might have in mind in some cases. It somehow enhances the quality of the fuel, something that we don't even see with a microscope here in Greece. I use it in a professional vehicle with approximately 35,000 kilometers per year. If I don't use it for 2-3 refills, you can feel the "fatigue" in the engine.

Having burned about 210 liters of diesel with Stanadyne, the car (1999 L200) came back to life! Smooth engine operation, slightly lower fuel consumption, better response to the gas pedal, and zero smoke from the exhaust! Excellent product! 2 ml per liter of diesel, with every refill! It has become routine now!

Finally, my problem with the engine was something else, so I didn't see any noticeable improvement. However, when I fixed it, the engine "flies".

I don't know if it does what it promises. I have been using it for a while. The future will show if I wasted my money or not. Anyway, I didn't understand some things about its function and I still have a little smoke, I continue to have a little smoke. Euro 4.

More smooth engine operation and elimination of black smoke in older technology tractors. I haven't noticed any differences in a new car.

Maybe the best oil additive!!! It does a really good job! I highly recommend it!!!

I have been using it for more than 10 years ... in older diesel engines, you immediately feel the difference (the engine runs smoother) ... but it also works for newer ones that have a DPF filter .. you will see a difference in pulling power as well as more kilometers ... the older diesel has done 300,000 km without any damage.

After a lot of searching on the internet, I ended up with this amplifier. You will see a big difference in the engine's performance. I hope it also does the rest of what it claims and I believe it according to the other reviews I have read abroad.

Very good product. I have driven 11000 kilometers and I fill it up every 2 times. I have never had a DPF indication so far. The engine is calm and there is no noise in the space