My portable 3kw generator has only been used 4+ hours in the past four years, and I have just changed the oil once, mostly to see how to do it.
The mower gets an oil change every year.
The stationary vertical 2-stage compressor in the garage also gets a change once a year. I plumbed up a drain tube and ball valve so it drains into a pan on the floor. When first installed, I still had kids at home, and was smart enough to remove the valve's lever and hide it.
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Caveat: I work for Honda, but the preceding is my opinion alone.