When fuel enters the crankcase of a diesel engine, it （）<br>A:dilutes the lube oil and reduces its viscosity<br>B:forms sulfuric acid in the lube oil<br>C:causes pitting and failure of the bearings<br>D:causes sludge deposits on valve stems

When fuel enters the crankcase of a diesel engine, it （）
A:dilutes the lube oil and reduces its viscosity
B:forms sulfuric acid in the lube oil
C:causes pitting and failure of the bearings
D:causes sludge deposits on valve stems

出自：海船船员证

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