Question

The grade of lubricating oil used in gearbox of a diesel engine is:

(A) SAE 30 (B) SAE 20 W 40
(C) SAE 90 (D) Any grade can be used

Answer 1

Answer:

For example, most modern gearboxes require a GL-4 oil, and separate differentials (where fitted) require a GL-5 oil. While they take the same form, the viscosity grades for gear oils are on a different scale than the viscosity grades for an engine oil. The viscometrics for gear oils are standardized in SAE J306

Answer 2

Answer:

any grade can be used

Explanation:

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