How long after shutdown should you wait before checking the engine oil level?

The recommended wait time of 20 minutes after engine shutdown before checking the engine oil level is designed to allow the oil to settle back into the oil pan. When an engine is running, oil is circulated throughout the engine components and may be clinging to various parts when the engine is stopped. Allowing this settling time ensures that you get an accurate reading of the oil level, as it will reflect the amount of oil available for lubrication without the fluctuations caused by the engine running. This practice helps to prevent the possibility of overfilling or underfilling the oil, which can lead to engine damage or inefficiency.