Your Mercedes requires use of synthetic oils rather than natural oils. While many makes can use conventional, natural, petroleum based oils, your Mercedes functions at a higher level and offers up better performance, and in turn needs a more efficient oil.At our shop we use Titan oil which is made by Fuchs, a German company that make a high quality lubes for the auto industry as well as the European air space programs.It is very important not only to use the correct oils but to service the motor on time or you may cause a premature damage to your engine. For most Mercedes models, you’ll want to get an oil change every 7,000-9,500 miles. You’ll also need to change your oil during A Service and B Service from your Flexible Service System.