This month we finished our long-term single tank test with our Mercedes 220CDI-DPF. After 470.000 km running on different kind of oils like rapeseed, Jatropha and used vegetable oil we removed all special parts from the car and looked for possible damages. This is the major information: 1. The engine performs well like during the first days. No damages, breakdowns, etc. 2. The rest of the Mercedes car is in an unbelievable bad shape, which was the only reason for stopping this test. The list of chassis repair is long and after two really serious breakdowns related to the suspension we became worry about the general safety.