Agreed with others on getting the transmission fluid changed now. You may not plan on keeping the car much longer… but plans change sometimes. And I know I, as a potential buyer, would rather know the fluid’s been changed than not. Because if the transmission fluid hasn’t been changed regularly, what else hasn’t been changed?
I have a relative who’s about to sell her house. It’s been…somewhat neglected, both outside and inside. It needs a new roof…but relative is convinced she’ll just “leave that for the next person”, as she doesn’t want to spend the money for a new roof. Well… the truth is the next buyer is going to see the house needs a new roof, and deduct that from the offer/price.
Point being: you pay for the lack of upkeep, one way or another.
Good luck.