New vehicles 2016 and newer model year will receive oil changes every 7,500 miles as recommended by General Motors. These vehicles use synthetic lubricants and allow for longer service intervals. These intervals will have a window of 1,000 miles before and after the specified interval. Example: a 22,500 mile oil change must be done between 21,500 and 23,500 miles giving the customer the flexibility to have the service completed at their convenience. General Motors will provide 2 oil changes before 24,000 miles and Courtesy will provide 3 for a total of 5 oil changes based on 3 years time or 37,500 miles whichever occurs first.