My name is Tüte, Tüte on Tour. No, I don’t have a Phaeton. I don’t even own my own car. And that’s almost twenty years ago. However, I’m interested in the topic of car and especially the thickness of VW. After many readings here in the individual Fred ́s, I noticed that there is nowhere written about an oil test here. Is there any knowledge in the Phaetonist family? Has anyone ever had his oil tested here from engine, gear or axle drives? Are there any reference values? The reason for my question is this. Oil is similar to the blood in man a very good mirror about the already expired processes in a machine. Therefore, only an oil test can determine very well what runs or has expired in a machine. If you have certain reference values now, you can see very well what condition a machine is in, if it has achieved a corresponding running performance in a machine. If, for example, a workshop like that of the Zottel can perform an oil test after xxx- km and know how to get rid of an oil from a used product.