this post was submitted on 27 Nov 2023
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Not OP, but not really. The real issue is that WD-40 is kinda like duck tape. It definitely has its uses, and hoo boy are there a lot, but it's too much power too fast, and corrupts young engineers and repair people into using it as a "fix all tool."
Sewing machine oil is a wonderful penatrating oil. This is what you use on tools inside the house that mostly just get a bit dusty.
WD-40 does contain some oils and can be used as a penatrating oil, but it's mainly a cleanser. You shouldn't leave it on anything that will be damaged by cleansing solutions, so motherboards, plastic in general.
For a general use oil, for hinges and things, I will clean with WD-40, and then once I have cleaned it I wipe it down with 3 in 1 penetrating oil, for things like door hinges, or sewing machine oil for more delicate tools.
Edit: I had not seen the flowchart below when I wrote this comment, but it illustrates my first point beautifully
Thank you, I'll try to remember this next time something squeaks around the house :)
Upvote for correct use of "duck tape" ๐