Natural gas vehicles (NGVs) generally get the best MPG equivalent (MPGe) among readily available fuels. However, it's crucial to understand that MPGe is a different metric than MPG for gasoline vehicles. MPGe accounts for the energy content differences between gasoline and electricity or natural gas. While NGVs may have a high MPGe, the availability of natural gas fueling stations is significantly less than gasoline stations.
In terms of traditional MPG, vehicles using gasoline engines optimized for fuel efficiency usually achieve the highest MPG, though specific models and driving styles greatly impact results. Hybrid vehicles also often offer high MPG, particularly in city driving.
