How Frequently You Should Change Your Synthetic Oil
How often should you change your synthetic oil in months? At Chris Auffenberg Family of Dealerships in Washington, MO, we hear this question from many customers who want to protect their engines and maximize vehicle performance. Regular synthetic oil changes are one of the most important ways to keep your car running smoothly. Whether you’re new to synthetic oil or just looking for a refresher, this guide breaks down how frequently you should change your synthetic oil, what affects that schedule, and where you can get reliable service in Missouri.
How Often Should You Change Your Synthetic Oil?
Most automakers recommend changing synthetic oil every 6 to 12 months, depending on your vehicle, driving habits, and climate. While synthetic oil can last longer than conventional oil—often up to 7,500 to 10,000 miles—time is just as important as mileage. Even if you don’t reach those miles, oil degrades over time and becomes less effective at lubricating your engine.
Here are a few general guidelines:
- Normal driving (commuting, light use): Every 10,000 miles or 12 months
- Severe conditions (towing, short trips, extreme temps): Every 5,000–7,500 miles or 6 months
- Low-mileage vehicles: Change synthetic oil at least once a year, regardless of mileage
Always check your owner’s manual for manufacturer-specific recommendations.
Synthetic Oil Change FAQs
Q: What’s the difference between synthetic and conventional oil?
A: Synthetic oil is chemically engineered to provide better stability, performance, and protection than conventional oil, especially in extreme temperatures.
Q: Can I switch to synthetic oil if I’ve been using conventional?
A: Yes, synthetic oil is compatible with most vehicles and can be used even if you’ve previously used conventional oil. However, be sure to use the oil grade recommended by your vehicle’s manufacturer.
Q: Will synthetic oil extend my engine’s life?
A: Yes, it can. Synthetic oil reduces engine wear, helps clean internal components, and performs better under stress, which contributes to a longer engine lifespan.
Q: How do I know it’s time for a synthetic oil change?
A: Signs include dark or gritty oil, decreased fuel efficiency, engine noise, or an oil change warning light. If you’re unsure, schedule a checkup.

Get Your Synthetic Oil Change at Chris Auffenberg in Washington, MO
At Chris Auffenberg Family of Dealerships, we offer professional synthetic oil change services for all makes and models. Our trained technicians use high-quality synthetic oils that meet or exceed factory specifications. When you visit our service center in Washington, Missouri, you’ll receive fast, friendly service and competitive pricing.
Schedule Your Synthetic Oil Change Online
Schedule your synthetic oil change today at Chris Auffenberg Family of Dealerships in Washington, MO, and enjoy peace of mind on the road. For expert advice, genuine parts, and dependable service, trust our team to keep your engine in top shape.