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How to fix a squeaky door

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Step 4: Lubing

Picture of Lubing
Now we relube the pins. Pour a little oil  on a paper towel and generously coat the pin. Machine grade oils work best since they penetrate metal well, keep out dirt, and don't break down easily. I use the bar oil for my chainsaw. DO NOT use food grade oil like vegetable oil. And don't even try WD-40, it might be a great product, but it isn't a lubricant. 
 
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Gun oil also works very good.