First time with an autobox fluid change..
I have a few questions would appreciate any advice from those who've been there before me

- Filter
I understand that its possible to clean and reuse the filter. Haynes mentioned 'solvent' and I think someone on here used white spirit. What is recommended? Obviously I don't want to leave any residue which may harm the new Dex 3.
Haynes also mentions a 'seal' . Is this a small oring type affair that sits around the key slot hole in the top of the filter? If so, this remained on the main body of the transmission - there are traces of glue on the filter. Does this mean I need a new filter, as BoL says the seal is not available on its own..?
- oil
I drained about 5L out including both sumps. Is that about right? If I get 6L to refill, will that be enough?
- gaskets
been using a paint scraper to remove the old gasket from the sumps and body - its hard going to remove all the crap esp. as some of the gasket is stuck to the sump rim in between the two sumps. Is there a solvent that will clean up the surfaces nicely?
Cheers,
Ian