I drive my '99 C280 about 2,000 miles per year. I use Mobil 1 synthetic oil. My last oil change was in October 2010 at 96,000 miles. Now in October 2012, I have 100,000 miles. The windshield sticker shows my next oil change due at 106,000 miles. Is it safe to wait another 3 years to get an oil change or is the Mobil 1 synthetic oil good for 10,000 miles no matter how long it has been since the last oil change?

 

you should do it every year. oil can break down over time.