How Long Can a Car Go Beyond the Maintenance Period Without Issues?
2 Answers
Exceeding the time and mileage slightly has minimal impact, but going far beyond can significantly affect the engine. Prolonged use of engine oil reduces its viscosity, causes severe thinning, and accumulates metal shavings and sludge, severely compromising the engine's lifespan and stable operation. Here is additional information: Oil Change: The replacement interval and quantity are of particular concern. The most straightforward approach is to refer to your vehicle's maintenance manual, which typically provides clear instructions. However, many people's maintenance manuals are long gone. Generally, the oil change interval is 5,000 kilometers, but the specific interval and quantity should be determined based on the vehicle's relevant information.
I think how long a car can go beyond its maintenance period really depends on the vehicle's condition. Having driven several cars myself, I've found that engine oil can last one or two months past its due date without major issues, but exceeding three months accelerates oil degradation and increases component wear, especially in urban stop-and-go traffic where engine friction intensifies. Prolonged delays may lead to abnormal noises or even cylinder scoring. Filters and brake fluid also require close attention, as these wear-prone parts deteriorate faster under summer heat or winter cold. That's why I always note the service date after each maintenance and regularly check tire pressure and fluid levels as a buffer. Even if delayed, I make sure to complete maintenance within 5,000 km to prevent hidden dangers, because minor issues accumulating over time can easily snowball into major repair headaches.
