So I had just dropped off my gf and on my way home I was doing about 90-95mph and as i got off the freeway I saw some smoke drifting up from under the car. Once I stopped the smoke caught up to me and it was clear from the smell it was trans fluid. I stopped to see where it came from and it appears that it came from somewhere on top of the trans. it burned it all of the oil that leaked out. It seems to be shifting fine. it doesnt leak at all at idle or when its off.

 

How's the reading on your trans dipstick?

 

There's a breather at the top of the trans that will blow off over pressure when the conditions are right, ie: build up of fluid pressure inside the trans. Like Chibi said, check your trans fluid stick for over filling.