Your INFINITI Q50 periodically requires maintenance to be in prime condition. The most accurate INFINITI Q50 maintenance schedule is printed in the owner's manual that you get with your car. INFINITI Q50 service intervals typically begin at 15,000 miles. Your car will be serviced again at 30,000 miles and several more times after that until it gets to 90,000 miles. Since the service requirements for the Q50 can change based on trim level and model year, you'll want to stick with the maintenance schedule in the owner's manual specifically for your car.