Is It Normal for Engine Oil to Reach the Upper Line When the Engine Is Cold?
1 Answers
When the engine is cold, it is relatively normal for the engine oil level to reach the upper marking line. The dipstick has two lines, one labeled 'min' and the other 'max,' representing the minimum and maximum levels. When adding engine oil, it is sufficient to maintain the oil level between the minimum and maximum marks, avoiding exceeding the maximum or falling below the minimum. Additional Information: 1. When the engine oil level is below the minimum mark, the engine may experience poor lubrication. If the oil level exceeds the maximum mark, the internal operating resistance of the engine may increase, leading to higher fuel consumption and slower throttle response. To check the oil level accurately, ensure the engine is cold. After driving, allow the vehicle to cool down before checking. If checked immediately after driving, the oil may still be distributed throughout the engine and not fully returned to the oil pan, resulting in an inaccurate reading. 2. If the oil level is too low, it may cause a drop in oil pressure, triggering the oil pressure warning light on the dashboard. Similarly, insufficient oil viscosity can also lead to low oil pressure, activating the warning light. When adding oil, it is recommended to use fully synthetic oil, as it lasts longer and provides better lubrication for the engine. Fully synthetic oil is artificially synthesized, resulting in more uniform molecular size and shape.
