Not a techical answer to your question but my Rover 623gsi auto has done 145000 miles and still works like a dream. The first auto I have had and I prefer it it to manual.
Use premium Plus oil in servicing, Try not to knock down if not necessary, accelerate before you reach a hill so it wont knock up on the actual hill, and avoid cruis control for short spells and as said it will outlast the car.