It seems to be a simple question but doing a search did not bring an answer.
So, how much fluid do I need to put in a 4L80E. It is completely empty (maybe some fluid left in converter, though).
Its been awhile since I've worked on one, but if memory is correct, It should be 6 qts for a pan drop/filter change, and 14 on a completely empty trans. That should get you in the neighborhood. If you think the converter still has some in it, then start with 6 qts in the pan, start it up, and put 4 more in right after start up and you should be close. Just ajust as needed from there.