Q
when to check engine oil hot or cold
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
It's best to check engine oil when the car is cold, ensuring accurate readings. Cold, in this context, means the engine has not been run recently and has had time to cool down, typically after being parked for several hours or overnight. This allows the oil to settle in the oil pan, avoiding skewed measurements due to oil circulating and coating engine components during operation. If checking when hot, components might be too warm to handle safely, and oil hasn't fully drained back into the pan, potentially leading to inaccurate readings. Moreover, checking in a consistent state, like first thing in the morning, offers the most reliable measure of your oil level, helping you maintain your vehicle effectively.
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