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Even if your car's exterior is spotless, it still requires regular oil changes to keep running smoothly. Motor oil helps maintain proper lubrication and temperature control within the engine, allowing it to function efficiently as it propels your vehicle. While neglecting to change the oil can cause engine issues, changing it too often is both unnecessary and wasteful. Fortunately, modern cars make it easy to determine when it's time for an oil change.
As noted by AAA, many new vehicles now feature oil-life monitoring systems. These systems will alert you with a dashboard notification when your oil is no longer performing optimally. The alert, typically an oil can symbol with liquid dripping from the spout, signals that it’s time to book an oil change appointment. After replacing the oil, your mechanic will reset the monitoring system. If you prefer DIY maintenance, you can manually reset the system by consulting your owner's manual.
It used to be common advice to change a car's oil every 3000 miles, but that's no longer necessary. For most newer vehicles, oil remains effective for at least 7500 miles. Certain models, including those from Ford, Volkswagen, Porsche, and some Toyotas, can last up to 10,000 miles between oil changes, and BMW engines may go as long as 15,000 miles on the same oil.
These intervals can vary depending on your driving conditions. If you often drive in severe conditions—such as extreme temperatures, heavy towing, or frequent stop-and-go traffic—the oil will degrade faster. In these cases, your vehicle’s oil-monitoring system will adjust the change schedule accordingly, so you won’t need to worry about calculating it yourself.
There’s a scenario where it's advisable to change your oil before the dashboard alert appears. If you don’t drive often, you may not accumulate enough mileage to trigger the reminder. However, even if the engine isn't running, oil can still degrade, so it should be replaced at least once a year, regardless of whether the maintenance light comes on.
The lights on your dashboard are not just there for show; they convey vital information about your vehicle’s condition and your safety. Here are more common dashboard symbols and what they really mean.
