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Why Isn't New Car Engine Oil Life at 100%?

1 Answers

CamilleMarie

07/30/25 9:21am

Due to the fact that new cars cannot be transported entirely by flatbed trucks during transit, they accumulate mileage, which is why the engine oil life of a new car is not at 100%. Engine Oil Life: Engine oil life refers to the usable duration of the oil. When the oil exceeds the specified time or mileage, it must be replaced. Engine oil also has a shelf life. If it exceeds this period, the lubricity and adhesion of the oil will degrade, leading to unnecessary wear on the engine. Calculating Engine Oil Life: The lifespan of engine oil is not calculated based on mileage but rather on engine operating hours. Conventional oil typically lasts between 100 to 150 hours, while synthetic oil can last 200 to 300 hours. When manufacturers recommend oil change intervals, they use the following calculation method: assuming an average speed of 80 km/h, 100 hours of operation would equate to 8,000 to 12,000 km. For conventional oil, it's advisable for owners to change the oil approximately every 5,000 km.

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