I have a 2003 Volvo V70 2.4 auto which has done 110,000 miles. Apart from being a little clunky in the morning the auto box is fine and smooth. However, the Volvo forum is emphatically of the view that I must change the auto transmission oil including having it flushed, as this will prolong the life of the box significantly. My Volvo dealer tells me that it is not necessary as the oil is supposed to be in for life, though interestingly he is happy to do the work. A bit of a conundrum, especially as I would struggle to afford a new auto box. I’m minded to leave it as I'm of the view "if it ain't broke don't fix it". What do you think?