http://www.trabold.de I came to the “Trabold Oil Filter” via a post in the Mercedes-Forum. I looked at the part life in Wertheim last week. The system and the test reports convinced me completely: Finest filters and never change oil. Then save the machine and extend the lifespan. Here’s my question to everyone: Is there any more experiences with the filter here in the Forum??? Possible mileage without changing oil??? Please feedback. Greetings, Steffen