What is the color of a lube oil? What is this properties called?

There are various brands, and types of lube oil. Are we talking oil, or grease? An oils' properties are grade, density, and viscosity. Most greases are dark blue whan you look at them as a smear on your fingers in the sun. Some greases are made with lithium, which allows greater adhesion to surfaces, better resistance regarding the viscosity breakdown, and better resistance to wear due to water permeation. Lithium greases can be red, or a real light grey. Viscosity is an oils' flowing ability, grade is its' purity, density is its' thickness.What is the color of a lube oil? What is this properties called?
Do you mean motor (engine) oil?





Engine oil is light (almost clear) amber color. As it gets dirty it turns dark brown to black.





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What do you mean by ';this property';?








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