Question

why should the oil of proper thickness be used in machine lubrication? ​

Answer 1

The most important property to look at when choosing a lubricant is its viscosity. This is the oil's resistance to shear and flow. ... This property can be improved with a viscosity index additive. Rust inhibitors protect surfaces against rust by forming a thin water repelling film on the metals surface

Answer 2

Answer:

The most important property to look at when choosing a lubricant is its viscosity. This is the oil's resistance to shear and flow. ... This property can be improved with a viscosity index additive. Rust inhibitors protect surfaces against rust by forming a thin water repelling film on the metals surface.

Explanation:

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