I put the quart of High Mileage Supertech ATF (red quart bottle, XOM lubricant) in yesterday, the whole thing. No burnt smell, and the car felt a little better today driving. It still whines under acceleration. And yes, i added the fluid with the car RUNNING. The owner checks it with it off, and cold...................................................

I wonder if it would be as simple as "the fluid is old OR the level is low" and maybe it needs more, it felt better today there was no burning smell and it didnt *slam* into gear like it did yesterday.

Could it just need more fluid because the old stuff is so bad, or the level is low? shrug

Like i said i literally need to sneak ATF in if i add more, because it is not my car.......................................