How often should I be changing the oil in my 94 S500 with 125000 miles? What type of oil should I use?

 

Depands upon how much you use ure car. I change mine after every 3000 miles.

My choice is Mobil 1 full synthetic. Dont use full synthetic if it was not used before. Meaning dont mix and match different types of oil. Viscosity depands upon the place where you live.

///S320