What's the 2005 mercedes s500 oil type?

The 2005 Mercedes S500 oil type is synthetic motor oil 5w-40. It is recommended to change Your oil every 7,500 miles or 1 year, whichever comes first.Over time the oil will become thinner, abrasive, and will start to wear down on vital engine parts. Synthetic oil is by far better for performance. It protects the engine due to lower levels of friction. Switching between synthetic and conventional oils will not cause any damage to an engine. Synthetic blends are a mixture of synthetic and conventional oil.Synthetic oil keeps engines cleaner. When oil travels through the engine, it picks up debris and deposits from tiny fragments of dirt and tiny slivers of metal which damage engines.