Hi Folks, I've recently switched from a manual diesel C200 to a petrol auto C180. *takes a bow* In the manual car, when going downhill or coming up to a junction - basically anywhere where I need no acceleration - I used to slip the car into neutral and coast to a stop in a small bid to save the engine and small amount of petrol. It's just a thing that I did. Question - would doing the same thing in an automatic have any adverse effects? Cheers, S.