Question 78Motor Plants - 1st Asst/Chief

The correct answer is A) The engine will crank slowly and may fail to start. Excessively cold lube oil will increase the viscosity (thickness) of the oil, making it more difficult for the engine to crank and start. The increased oil viscosity requires more effort from the engine's starter motor to turn the crankshaft, resulting in a slow cranking speed. In extreme cases, the engine may fail to start altogether due to the resistance of the thick, cold oil. The other options are incorrect because: B) Cooling system issues would not be directly caused by cold lube oil, C) Engine overspeed is not a typical effect of cold lube oil, and D) Fuel oil dilution is not a direct consequence of excessively cold lube oil.