I have a 1987 300E. The car has a problem when accelerating from stop or low speed (while on 1st gear) it feels like it is trying to go to 2nd gear and 2 second after that you feel like someone pushed the car and it jumps forward a little changing to the second gear.
I know the car has engine oil leak problem and I have to refill every 500 miles.
What does the problem here? And what is the best Engine Oil for my model?