besides oil changes and the cabin filter, what else should be / should have been performed on an 08 prius with 40k miles? i'm tight on money and can't afford to send the car in, but i am decently mechanically inclined.
Have you got the book with maintenance schedule? Here's my summary of the US schedule: http://priuschat.com/forums/gen-iii...93946-2010-prius-maintenance-schedule-us.html
http://www.toyota.com/t3Portal/document/omms/T-MMS-08Prius/pdf/Prius08SMG.pdf is for a 2008, 40,000 miles is on page 12
The engine air filter is more important (from the point of view of engine longevity) than the cabin air filter.