Question 1072Deck Safety70% to pass
Lubricating oil should be changed on a heavy duty diesel engine when _______________.
AI Explanation
The correct answer is A) it has been in use for a specified interval.
Lubricating oil in a heavy duty diesel engine should be changed at regular intervals specified by the engine manufacturer, regardless of the oil's color or viscosity. This is because the oil breaks down over time and use, even if it doesn't appear visually dirty or thin. Following the manufacturer's recommended oil change schedule is the best way to ensure proper lubrication and engine protection. The other options (B, C, and D) are not reliable indicators for when to change the oil, as the oil's condition can deteriorate before noticeable changes in color or feel.
Related Questions
#1070 After an engine is started you should _______________.#1071 During fueling, all doors, hatches, and ports _______________.#1073 Generally speaking, the fuel injected into a marine diesel engine combustion chamber is ignited by _______________.#1074 How should you warm up a diesel engine that has not been run for some time? #1075 How would the exhaust of a properly operating diesel engine appear?