Hi experts! Here it has already been discussed that engine protection from Liquimoly should be particularly recommended as an addition to the engine oil, furthermore the addition of 1/4 liter 2-stroke oil to the diesel should also have great lubrication properties for the high-pressure pump and the injectors. My question: Is there an “accustomation effect” for the engine, the pump or the injectors? So if I stop with the “treatment”, the disadvantages result? I also called at Mercedes workshops n, there you have denied the addition of motor protection and 2-stroke oil as necessary, yes you didn’t even know these methods of motor protection. Would be great if someone could find himself who could answer the questions without a “I would, I guess, I believe etc.” PS: Since Sterndocktor is a highly competent member here, I would have liked to know what he is doing professionally, even if he thinks we wouldn’t believe it. lg Heimo