Like all vehicles, the Infiniti QX60 requires regular maintenance to keep it running smoothly. The schedule for required service intervals may vary depending on the year of your vehicle and how you use it, but here is a general overview of what you can expect: The Infiniti QX60 is a luxury crossover SUV first released in 2013. It is equipped with a 3.5L V6 engine and seats up to seven passengers. The regular maintenance schedule for the Infiniti QX60 is as follows.