How often should the oil in the car be changed?

The oil in a car should typically be changed every 5,000 to 7,500 miles, depending on the type of oil used and the manufacturer's recommendations. Some modern vehicles and synthetic oils can extend the interval to 10,000 miles or more. It's essential to check the owner's manual for specific guidance and consider factors like driving conditions and habits. Regular oil changes help maintain engine performance and longevity.