Hello all, I am a new member. I am working to restore to driving condition a mrk 2 09 Santa Fe 3.3L, AWD, that has been sitting for 2 1/2 yrs. It was parked due to the typical valve cover gasket leak over the alternator. I have replaced that, changed the oil, coolant, rear brake pads and rotors, right rear caliper, front pads and rotors, and now I am thinking of changing the transmission fluid. However the last owner did not change the trans fluid and it has 150k miles on it. Any thoughts?