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Hi, I am curious about the type of plastic that computer fans are made of (the most common and cheap, black tone) and its resistance to motor oil. As far as I know, motor oil eats certain types of plastics (some degrade quickly, others slowly), and rubbers pretty quickly (in a few days, maybe)...

Hi, I have some very old computer fans (8x8 and 9x9cm) whose sleeve bearings are a little worn (but not much, they still work without shaking too much). I have been oiling them for a few years with SAE 20W-50 motor oil and it works fine for me for a long time (and not so much with 3 in 1 because...