The question of fuel grade for the Acura ILX is frequently raised by potential and current owners. While the vehicle’s engine is designed to function with regular unleaded gasoline, the manufacturer recommends premium fuel to achieve optimal performance. This distinction centers on the octane rating of the gasoline; premium fuel typically boasts a higher octane level than regular fuel.
Employing premium gasoline in the Acura ILX can lead to enhanced engine responsiveness and potentially a slight improvement in fuel economy under specific driving conditions. The use of premium fuel contributes to minimizing the risk of engine knocking or pinging, particularly during demanding driving situations such as acceleration or hill climbing. Historically, Acura, like many manufacturers of performance-oriented vehicles, has emphasized the potential benefits of premium fuel, even when not strictly required for operation.