Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.<br>A:cetane number<br>B:pour point<br>C:viscosity temperature<br>D:quality of the oil

Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.
A:cetane number
B:pour point
C:viscosity temperature
D:quality of the oil

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