What's the 2006 mercedes r350 oil type?

The oil type used on the 2006 Mercedes R350 is Castrol Edge Synthetic Motor Oil 5W-30. The engine oil capacity on Your vehicle iS8.5 quarts with a filter. The purpose of engine oil is, as You may know, to lubricate Your motor. It doesn't stop there, though, it also elongates the life of the interior parts of Your motor, cleans, and reduces friction. When the oil reduces friction it allows the parts to live a longer life and not to be replaced as often. If You have owned a car before You'll know how expensive replacing parts in the engine can be. I would recommend changing the oil along with the filter going along with Your required interval times.