Here’s how much fluid came out after I added 24 oz, then let the truck warm up for 20 min, then let the check plug drain until it became a trickle. This is a 5-gal oil catch pan. It looks to be about 2 qts of trans fluid. I would say it was conservatively 1qt overfilled, probably a bit more. I'm gonna drive around the block and see how she does.