While stationed in Heidelberg, Germany I brought in my old, plain-jane Mercedes Benz 230 to the local dealer. After the service dept. rep, in a lab-type coat, inspected my car and documented EVERY dent, scratch, etc., plus recommended services and parts I would soon need. I opened the trunk and showed him the Quaker State oil and Fram filter I wanted them to use. I was told if I could afford a MB, even an old one, I should take proper care of it. He informed me they would not be performing the oil change if I insisted on using Quaker State oil.Frikkin Quaker State oil.