The fuel recommendation for the Infiniti QX60 is a common question among owners and prospective buyers. While the manufacturer states that premium gasoline (91 octane or higher) is recommended for optimal performance, it is not strictly required. The vehicle’s engine management system is designed to adapt to different octane levels.
Using the recommended premium fuel can potentially yield benefits such as slightly improved horsepower and fuel economy, particularly under demanding driving conditions like towing or aggressive acceleration. Historically, many luxury vehicles were designed to specifically require premium fuel to achieve their advertised performance figures. However, modern engine technology allows for greater flexibility and adaptation to various fuel grades.