Which of the following lubricant has least rate of change of viscosity

1.	Which of the following lubricant has least rate of change of viscosity w.r.t temperature.
A.	VI=20
B.	VI=30
C.	VI=40
D.	VI=50
Answer» E.

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Which of the following lubricant has least rate of change of viscosity w.r.t temperature.

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