what are we supposed to check, replace, for 30k maintenance thanks

 

It's in the manual. Get better spark plugs, don't use the cheap ones from Toyota. Oil, filter, spark plugs, rotate tires and you're good.

 

thnaks what about an ac filter?

 

you can make your own for the cabin filter

 

Where in the cabin Is the ac filter and what do u mean by making my own

 

Cabin filter is behind the glove box. There's a little tray you slide out.

Follow the tech article here: https://www.scionlife.com/forums/viewtopic.php?t=109592
It shows how to make your own.

 

Actually, the best spark plug for the car you can get are the cheap ones from Toyota. The dual ground prongs are used for the swirl spark ignition that the scion engine uses. It is actually one of the few engines that benefits from a multi prong plug.

 

just get NGK iridiums...
toyota uses delso iridiums so they should last 60k miles but my dads sparks were bad way before 60k miles...