So oppo, in a few Saturdays I'll be helping a teen from church get some parking experience. Talking with him, I also realized that he still has a bit to learn. What knowledge should I share with him?

I'm thinking of simple stuff that every car driver really should know; like changing a tire, changing wiper blades, if your car is rwd or fwd (and give a brief explanation of the difference), etc. Basically info to make him a better driver overall.

Any idea on what he should know?