My car was built in Nov. of 2007 it is now Feb. of 2009 and my Mercedes has 1500 miles on it. I just bought it in Dec. of 2008 with 20 miles on it. The dealer/mechanic claims that I don't need to have the oil and filter changed until 1 year and or 12K miles from the date that I bought the car. He also stated that the high grade synthetic they put in the Mercedes Benz's engine is fine setting in a unused engine for 4-5 years. I plan on having it changed before next Dec. but I would like to wait until I get about 4-5K miles on the car/oil which will be around May of this year. Thoughts???