A sudden decrease in the diesel engine lube oil viscosity could be an indication of（）<br>A:loss of additives from the lube oil<br>B:carbon deposits in the lube oil<br>C:excessive centrifuging<br>D:excessive fuel dilution

A sudden decrease in the diesel engine lube oil viscosity could be an indication of（）
A:loss of additives from the lube oil
B:carbon deposits in the lube oil
C:excessive centrifuging
D:excessive fuel dilution

出自：海船船员证

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