Jaguar X 2.5L Auto. Jaguar says that the transmission is sealed for life!!?? I cant believe that. The x type has a weak transmission and have talked to many people that have had it fail around 50-60,000 miles. I have 62,000 and just wanted to try to prevent this from happening. Even though its "sealed for life" should I have it flushed and refilled with new fluid? What are all of your opinions on this? Thanks