Why is an annual oil change necessary even with synthetic oil?

As a car enthusiast and expert in the auto repair industry, I often get asked about the importance of oil changes. Many people believe that with synthetic oil, they can extend the time between oil changes. However, even with synthetic oil, it is still necessary to change your oil annually.

First, let's talk about the difference between synthetic and regular oil. Synthetic oil is made from chemical compounds and is designed to provide better performance and protection for your engine. It is also more expensive than regular oil. Regular oil, on the other hand, is made from crude oil and is less expensive.

Now, let's get back to the question at hand. Why is an annual oil change necessary even with synthetic oil? The answer is simple: oil breaks down over time. Even though synthetic oil lasts longer than regular oil, it still breaks down and loses its effectiveness over time. This is due to a number of factors, including heat, moisture, and contaminants.

In addition, there are other benefits to changing your oil annually. Regular oil changes help to keep your engine clean and running smoothly. They also help to prevent engine wear and tear, which can lead to costly repairs down the road. By changing your oil annually, you are taking a proactive approach to proper car care and maintenance.

So, what is the recommended oil change interval for synthetic oil? It varies depending on the make and model of your vehicle. For example, the 2018 Honda CRV oil change interval is 10,000 miles or one year, whichever comes first. The Lexus IS 250 oil change interval is 10,000 miles or six months, whichever comes first. Diesel oil changes intervals can also vary depending on the manufacturer's recommendations.

If you use Mobile 1 synthetic oil, the recommended oil change interval is typically 15,000 miles or one year, whichever comes first. However, it is important to check your vehicle's owner's manual for the manufacturer's recommended oil change interval.

In conclusion, an annual oil change is necessary even with synthetic oil. It helps to keep your engine clean and running smoothly, and it can prevent costly repairs down the road. By following the manufacturer's recommended oil change interval and practicing proper car care, you can keep your vehicle running at its best for years to come.

Bill Gleason

Cars, classic cars, woodworking, hiking

Bill is a dedicated car enthusiast with a career in the auto repair field spanning over a decade and a half. His passion lies in the restoration of classic cars and assisting vintage vehicle owners in maintaining their prized possessions. He is committed to sharing his expertise and knowledge to help others resolve common car issues and ensure their vehicles continue running optimally.