It used to be that every 3,000 miles was the recommended cycle for most cars. Today, thanks to advanced Buick and GMC engines as well as advanced lubrication, the recommended interval is every 7,500 to 10,000 miles. Just remember that dirty or insufficient oil is one of the most common causes of vehicle trouble, so keep oil as fresh as possible to keep your vehicle running properly around Cumberland RI and Mansfield MA.