Personally for me, I do not know the first thing about engines. Unfortunately, I have to take the boat and car to a shop whenever something needs to be done.

I wish they offered auto shop at my high school lol.

Thinking of taking a class at a local CC to start learning about them. I hate that I have to take the boat in for an oil change or simple services.
I tried a little DIY project last year and it did not turn out very well lol.

So who here does their own Engine work whether it be boat or car?
Where did you learn to work on the engine?
Do you do your own boat maintenance?