I used it about a month ago. I can't say that I noticed any difference in fuel consumption or engine performance. Its use was purely preventive without the car having any issues. It is a 2015 Toyota Auris 1.6 diesel

In a Yaris 2014, I put it in half a tank, it did 3 regenerations of the dpf until it burned it, I saw on foreign forums that this is normal and it expels through the exhaust gases whatever is cleaned.

Since I installed it, the only thing for sure is that the indication for the dpf stopped appearing periodically and it seems to be regenerating. Therefore, the fuel consumption remains consistently low. The 40,000 kilometers have passed and I will install it again. That's it. I believe it's worth it.