Mobil 1
 

It recomends that i use Mobil 1 oil in my 2001 C320,,, the dealership in which i purchased the car gives free oil changes, brakes, and batteries for the life that i own the vehicle. But i dont think they use Mobil 1 oil.. Will it make my engine run any different? And will it prematurley age my engine?

does your dealership do the oil changes at only the prescribed FSS intervals?
which is typicaly every - around or about 10K miles.

Mobil ! is synthetic oil - and you can search this forim for opinions on Mobil 1 vs. other synthetics.

also with your cars manual came a PRODUCT approval booklet, in it is a list of motor oil brands and viscosities approved for your car

The dealership changes the oil every 3000 miles..

if the dealership will do oil and filter free every 3K, and they use one of the oils listed under the Mercedes Benz Approved Lubricants - thats good.

you can compare Mobil 1 to other synthetics, some people diss Castrol,