单选题What is one effect of running a diesel engine at too cool a temperature? （）ABuildup of sludge in the lubricating systemBExcessive fuel consumptionCSevere heat stresses on mechanical partsDFoaming of the lubricating oil
单选题
What is one effect of running a diesel engine at too cool a temperature? （）
A
Buildup of sludge in the lubricating system
B
Excessive fuel consumption
C
Severe heat stresses on mechanical parts
D
Foaming of the lubricating oil
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