reply to batsona
Re: Difficulty backing up driveway.... There are 12V oil change pumps made specifically to suck oil out of engines/trannies through the dipstick hole -- I'd get one, remove as much ATF as possible, and then put back the equal amount, or maybe a little more. Then send the oil that came out for oil analysis.
Disclaimer: I have one such pump and found it money well spent.
Wacky Races 2012!