Bob Villa wrote:
If you can run the motor to get it hot, drain the gas with a siphon,
and dump it over on the filler side...it is much easier.
Plastic drain plugs strip and metal ones seize. It is the only
practical way to do it. (And most businesses do it this way)

Do note that you will likely need to tip it back upright, then over again a few
times to get out all the oil. And, you get more out if you warm up the engine
first.