The question of fuel grade suitability for the Infiniti QX80 centers on whether it is permissible to operate this vehicle using regular, 87-octane gasoline, instead of the manufacturer-recommended premium fuel. This choice impacts engine performance and longevity. Premium fuel is designed to resist pre-ignition or knocking in high-compression engines. An example scenario involves consistently using 87-octane fuel in a QX80, potentially leading to reduced horsepower and, over time, possible engine damage.
Selecting the appropriate fuel grade offers several benefits. Adhering to the manufacturer’s recommendation ensures optimal engine performance, fuel efficiency, and minimizes the risk of engine damage from knocking or pinging. Historically, premium fuel has been formulated to address the specific needs of advanced engine designs that demand higher octane levels for optimal combustion. Using the recommended fuel helps maintain the vehicle’s original design specifications and prolongs its lifespan, thereby contributing to a more reliable and valuable asset.
