To reduce friction, which is a resistance between two surfaces in contact. The points of contact between moving parts in a machine create heat (which is actually a desired effect in a flintstone, in which one strikes a flintstone with another rock to create heat as a means of starting a fire) and cause damage in their grinding against one another. Oil reduces the friction, which reduces the heat generated and the damage from the moving part surfaces grinding against one another; this reduction in friction is called lubrication.
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What type of oil do I use to oil my kenmore 2142 sewing machine. I just purchased at a garage sail and it is freezing up on me. Thank you
Crude oil is oil got from directly extracting process. you can use an oil extracting machine such as screw oil press or hydraulic oil press which are common oil extracting machines used for this.
if you put on oil remover on it and it comes off
Yes. The oil drips into the crankcase via the oil filler location.
No you do not, you would put oil on a oil filter gasket if it is a spin on type, this stops the rubber from binding and helps it seal.