The necessity of using high-octane fuel in Infiniti vehicles is a common inquiry among owners and prospective buyers. Many modern vehicles are engineered to operate optimally with specific fuel grades. This requirement stems from engine design, specifically compression ratios and turbocharging systems. Using a lower octane fuel than recommended can, in some cases, lead to decreased performance and potential engine damage over time.
Adhering to the manufacturer’s fuel recommendations, found in the vehicle’s owner’s manual or on the fuel filler door, is crucial for maintaining optimal engine performance and longevity. Premium fuel, typically defined as gasoline with an octane rating of 91 or higher, is often formulated with enhanced additives that contribute to cleaner engine operation and improved fuel economy. Historically, the development of high-performance engines has coincided with the availability and increased use of higher octane fuels.