Hi all, About a month ago I serviced my auto putting a steel pan on with some gulf and Western. I'm noticing some problems mainly when the gear box is cold. The first change into 2nd gear seems to stutter and clunk. Also 2nd to third seems to flare a bit but I feel the car still gaining momentum. The changes seem to be a lot sharper with the new oil and I actually miss the smoothness of the old oil. I have checked the oil again and it was slightly over full. The level should be spot on now but I still have the same symptoms. I don't think this gulf and Western stuff is anywhere near as good as the factory stuff. Can anyone help? Is there an additive or are my clutches stuffed?