A good evening to all interested parties. I read here again and again in the forum questions like: “What is the best oil for our engines?” And again and again I could laugh at the naive answers. Almost ten years ago I did not make any oil change with my Corrado G60 over 70,000 self-driving kilometers on advice of the previous owner, a Porsche/Audi tuner with a well flourishing business. That used the car only in the winter. And when I sold the car with only almost 200,000km to a good mopped buddy, he did not change oil for further years. My last car (Astra F Caravan 1.6i 100hp) I left my father-in-law with 280.000km, the last oil change took place at almost 200,000km. Motor still has good compression, hardly any oil consumption, oil is never changed any more. Only the filter was changed once a year. Don’t believe their clueless shame? Already at that time the car picture made a long-term test with this result (was known to the tuner), at least 100000 times again.