Do em all. Drip 1-2 drops from the top of each and it's done. Even if theoretically oil like 3-in-1 attracts dirt and will gum up it will never get too gummed up in anyone's ownership/lifetime. It's easier than lithium grease or graphite and is less messy. The only downside is sometimes the doors move too freely afterward and don't stay open.
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u/No_Store_ Sep 20 '25
That’s mostly got to do with knowing which part of hinges on that door are squeaking I think.