The recommended interval for changing synthetic oil generally ranges between 7,500 and 15,000 miles, depending on the vehicle and driving conditions. Most modern vehicles suggest oil changes within this mileage range, or at least once every year
. Key points to consider:
- Owner's Manual Guidance: Always follow the manufacturer’s specific recommendations in your vehicle’s owner’s manual, as it provides the most accurate interval for your car
- Driving Conditions: Severe driving conditions such as extreme temperatures, frequent short trips, stop-and-go traffic, towing, or dusty environments may require more frequent oil changes, sometimes as often as every 3,000 to 5,000 miles or every 3 to 6 months
- Synthetic Oil Advantages: Synthetic oil lasts longer and performs better under heat and cold than conventional oil, which typically requires changes every 3,000 to 5,000 miles. Synthetic oil also stays cleaner longer and protects engines better, especially high-performance engines
- Mixing Oils: While you can mix synthetic and conventional oil in a pinch, it is not recommended as it dilutes the benefits of synthetic oil. If your car requires synthetic oil, it’s best to stick with it
- Older Vehicles: For older cars or those with high mileage, switching to a high-mileage synthetic oil may be beneficial, potentially extending oil change intervals while protecting engine wear
In summary, under normal driving conditions, synthetic oil should be changed every 7,500 to 15,000 miles or every 6 to 12 months. Under severe conditions, change intervals may be as frequent as every 3,000 to 5,000 miles or every 3 to 6 months. Always prioritize the vehicle manufacturer's recommendations for the best results
