>>2872646
>It clearly works.
Only to an extent, though. WD 40 is much thinner than proper grease, meaning that it won't lubricate as well and wil increase wear. You won't notice that after 10 years, and probably not after 20, either, but after 50 years or so you'll see that the door hangs lower than a properly lubricated door would.
I'm having the same problem in the house I live in, where my grandfather and grandmother always used WD 40, Ballistol (even worse, since it's 60% water) and gun oil spray to lubricate their hinges. Half the doors are scratching the ground, while in the house my parents live in (that has the same door hinges, bought at the same time - they purchased bulk back then) doesn't ahve that problem. The difference? My father used lithium grease on the hinges when installing them.

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>childhood home>door to garage that was used frequenty loudly squeaks since as long as I can remember>at age 25 (been squeaking for…

>childhood home
>door to garage that was used frequenty loudly squeaks since as long as I can remember
>at age 25 (been squeaking for…