Which feature is known to improve a vehicle’s fuel economy and emissions?

Fuel injection systems are designed to optimize the air-fuel mixture that enters the engine’s combustion chamber. By delivering the precise amount of fuel needed for various driving conditions, these systems enhance the efficiency of fuel combustion. This improved efficiency leads to better fuel economy, meaning vehicles can travel further on less fuel, as well as reduced emissions because more complete combustion results in fewer unburned hydrocarbons and other harmful pollutants being released into the atmosphere.

Carburetor systems, while once common, do not provide the same level of precision in fuel delivery and are generally less efficient compared to modern fuel injection technologies. Manual transmission can offer some benefits in fuel economy under certain driving conditions, but it is not as significant a factor as a well-designed fuel injection system. High-octane fuel is primarily beneficial for preventing engine knocking in high-performance engines rather than improving overall fuel economy or emissions across the board. Thus, the superior performance of fuel injection systems makes them a key feature in enhancing a vehicle’s fuel economy and controlling emissions.