My 2010 Prius is fast approaching 200,000 miles. I've already drained and filled the inverter coolant, radiator coolant and transmission fluid Spark plugs are fairly recent. What else should I do to keep it running another 100,000 miles? It looks like headgasket failure is a problem that can develop in high mileage 3rd gen Prius, and cleaning the EGR system is the suggested preventative maintenance. Do you have any resources to walk me through that?
You could check out these videos and decide for yourself: Nutz About Bolts Prius Maintenance Videos Hope that helps.