When should engine oil levels be serviced?

Engine oil levels should be serviced when the oil is less than halfway between the ADD and FULL marks. This guideline ensures that the engine maintains sufficient lubrication, which is crucial for its performance and longevity. If the oil level drops below this threshold, the engine may not receive adequate lubrication, leading to increased wear and potential damage over time.

Checking and servicing the oil at this stage prevents issues related to insufficient oil, such as overheating or engine stalling, and is a proactive measure to ensure the aircraft operates safely and effectively. It is also a best practice in aviation maintenance to monitor oil levels regularly, as this contributes to overall engine health and reliability.

Maintaining oil within this recommended range is an essential part of routine checks before flight operations, helping to ensure optimal engine performance and safety.