Question

Theoretically among the following, the best lubricants are
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Answer 1

Answer:

A good lubricant generally possesses the following characteristics:

High boiling point and low freezing point (in order to stay liquid within a wide range of temperature)

High viscosity index.

Thermal stability.

Hydraulic stability.

Corrosion prevention.

High resistance to oxidation.

Explanation:

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Answer 2

Answer:

heyy...but among which???

Explanation:

grease and oil are commonly used ones