Hi Yesterday, I changed the oil in my 2.5 v6 automatic Rover 75 and that seemed to go well. However, this morning I cant drive away because the automatic gearbox wont engage in Drive (or the other gears) . Reverse seems to be ok though. When I put it in drive, I need to rev the engine to the floor, for the car to begin to move forward - slowly. I cant see how the oil change could have caused this. Does anyone have any ideas whats going on here? Any thought would be welcome. Thanks.