I have tried this product already on a e39 540i with V8 Displacement 4,4Liter. This was at a time where I could not properly assess the consumption of the vehicle when it was still new in my fleet. I had ordered it with the background, it could not hurt certainly! So I could also use this cleaner is not properly assessed or its cleaning performance. After months I had decided this even with my E38 750iL with 5,4Liter displacement V12 try. The verbauchsverhalten is known to me for 6 years and ca.100.000km in this car. Now I had bought 2 cans in a hardware store and have them in a complete tank of fuel added (95Liter) I always tanke Super Plus or Ultimate102. Without further ado, the engine is started and then back home. After about half of the distance 5km of consumption began to gradually but surely to fall. In this model have to say that it has a current fuel consumption. I could not believe my eyes! I am therefore of the car went to fast to the consumption values read in more detail in the secret menu, and where initially a 10,0L stand (at a constant 70km / h and level ground) I now have a 8,5L! I'm really won this small remedies completely convinced. I'll absofort if the values again deteriorate again add. Meanwhile, more than 2000km elapsed since the cleaning. It is also still working on everything as the valves and injectors seem to be of the cleaning exzelllent. And each time I am amazed how economically well, a V12 is moving !!! But one thing I believe nevertheless remains, the cleaning makes sense only when the vehicle endsprechend old or my opinion, nearly 200.000km the brand has achieved. Finally, as a fuel injection system including valves must pollute first before improvement can occur by cleaning. I think that some people should understand that the Internet about the product is not a good word to lose time. It is not a panacea, it also promises to be none, but it is a cleaner! And it has helped me absolute.
