That’s an excellent question. “How often should I change my car’s oil?” is probably the most important question you’ll ask about your car. There is nothing you can do to maintain your vehicle that will have more importance than changing the oil on schedule. So, what is the answer to the question “How often should I change my car’s oil?” The answer used to be every 3,000 miles, or every two months, whichever comes first. But cars have changed. Oils have changed. Today, the answer to the question, “How often should I change my car’s oil” is, “It depends.” It depends on the vehicle and it depends on the oil that you use. For instance, there are synthetic oils that you can drive on longer and further than with conventional oil. With synthetic oil, some say every 5,000 miles. But that also changes based on the vehicle and the manufacturer. For instance, Toyota has recommended changing the synthetic oil every 10,000 miles. Jaguar recommends every 15,000 miles (based on an article in Ed...