I am an owner of a 02 CLK320, can I trust MMO in my fuel and engine.  I see alot mention about diesel engines for Mercedes but nothing for regular fuel Mercs.  I am using Shell V-power most of the time, but always 93 Octane.  I have about 121,000 miles doing about 40,000 a year.  I know you don’t have to say it… it is a lot!!!

Marvel Mystery Oil has been around since 1923 and basically the formula has not changed significantly in all the years.  It is safe for use in gasoline and diesel engines.  It is registered with the Environmental Protection Agency (EPA) as a fuel additive for both gasoline and diesel engines.  Also, Marvel Mystery Oil is compatible with all motor oils, full synthetic, semi-synthetic and petroleum based.  Our recommendation for use as a fuel additive is 4-ounces of Marvel Mystery Oil for every 10-gallons of gasoline.  Since you have a high mileage engine, we recommend replacing 1-pint of your motor oil with 1-pint of Marvel Mystery Oil for your first oil change.  After that, you can replace 1-quart of motor oil with 1-quart of Marvel Mystery Oil.