I have a '12 v that is now about 3 years old and 25k miles. What proactive maintenance that isn't already in the schedules the dealer might be using should I be doing and at what age/mileage to extend the probable life of the car? I know preventative maintenance is an inexact thing and you can over maintain but I'd like to at least consider what you all suggest.
i don't do anything, but some like to change the tranny oil. how many miles do you expect to keep her?
if it was mine* I would change the ATF WS in the transaxle near 30,0000 miles, near 90,000 miles and then every 90,000 miles. *mine has 77,500 miles after 3 years.
I would do nothing other than the required maintenance, which is likely overkill anyway. Surprised your dealer has not tried to upsell you on all kinds of things not really needed. They are very reliable vehicles. Heck., our old Corolla has its 10th birthday this week and has been running fine all these years, and I certainly did not jump on every dealer offered service.