Some questions about oil
Mobil1 ESP 5W-30 Full Synthetic seems like a safe bet as it meets the MB 229.52 spec:
This is my first car without a dipstick which I find somewhat disconcerting. I checked the oil and it was halfway down which scared me as the car only has 1500 on it. I reread the manual and says to check the oil level after the car is warmed up which I did and the level was full is this normal?


