During operation, what should an operator monitor in relation to the engine?

Monitoring engine temperature and oil pressure is crucial for the proper functioning and longevity of the engine during operation. The engine temperature provides vital information about the cooling system's efficiency; if the temperature is too high, it may indicate cooling system failure or overheating, both of which can lead to serious engine damage. Oil pressure is another key indicator, as it ensures the engine's components are lubricated properly. Low oil pressure can lead to increased friction and wear, which can ultimately result in engine failure. Regularly assessing these factors allows the operator to identify potential issues before they escalate into major problems, ensuring safe and efficient operation of the road grader.