Yes, it does deliver what it promises, my fear is that it may decrease the already reduced lubricating capacity of diesel (due to new specifications), which results in the wear of the high-pressure pump and injectors

Indeed, it works pleasantly. It provides a 5-10% better acceleration to the car, there is a difference compared to before, just not huge.

There is a difference and it is evident. In acceleration and economy. I first used the corresponding engine cleaner and then this additive without any problem with the fuel cap, due to adulterated diesel. The operation was successful, the doctor is recommended!