In the “old days”, experts recommended changing conventional oil and oil filters every 3,000 miles. Some people still have that stuck in their mind as a guideline, so if it gives you peace of mind to visit the dealer every few months, go for it! But today’s newer-tech engines often use synthetic-blend oil or full synthetic oil and are engineered to go anywhere from 7,500 to 15,000 miles between oil changes. Yes, synthetic oil changes cost more than conventional ones, but you’re also changing the oil less often. Of course, always follow your manufacturer’s recommended service interval. Not every engine needs synthetic oil.
Something else that can affect how often you need to change your oil is where you live and how you drive. If you drive like the little old lady (from Pasadena or otherwise), the recommended interval is probably just fine. But if you live in the desert (or in an especially icy location) or tow a trailer often or do a lot of stop-and-go driving, you’re operating under severe driving conditions and might need to change your oil more often. As usual, your owner’s manual can tell you more. For more info about caring for your car long-term, see Top 10 Car Care Tips.