Most leather care products will do a good job on the seat. Not all parts of the seat are leather thou but it will still take the same treatment anyway.
Leather care = Lexol; "Pleather" care = Son of a Gun (STP) for seat or Armour All is okay, but it evaporates and has to be reapplied constantly. Yes Pledge lightly to finish items for shine, but too slippery for seats.