What is the typical fuel consumption for a 2.5L naturally aspirated engine?

[DiClaire]

2.5L naturally aspirated engines typically consume around 11 to 12 liters of fuel per 100 kilometers. Naturally aspirated refers to the first stroke where the air-fuel mixture is drawn in by the natural pressure difference, while turbocharged engines compress the air first to increase its pressure and density, thereby enhancing intake volume and power output through pressure difference and the high pressure of the gas itself when the valve opens. Below is an introduction to automotive engines: 1. Engine classification: Based on power sources, automotive engines can be categorized into diesel engines, gasoline engines, electric motors for electric vehicles, and hybrid systems, among others. 2. Engine principle: Common gasoline and diesel engines are both reciprocating piston-type internal combustion engines that convert the chemical energy of fuel into the mechanical energy of piston movement to deliver power. Gasoline engines feature higher rotational speeds, lighter weight, lower noise levels, easier starting, and lower manufacturing costs; diesel engines have higher compression ratios, better thermal efficiency, and superior fuel economy and emission performance compared to gasoline engines.