Fuel:
- ICE: ICEs can run on a variety of fuels, including gasoline, diesel, natural gas, or even alternative fuels like biofuels or hydrogen.
- Gasoline engine: Gasoline engines are specifically designed to run on gasoline, which is a mixture of hydrocarbons derived from crude oil.
Compression ratio:
- ICE: ICEs have a higher compression ratio compared to gasoline engines, which means that the air-fuel mixture is compressed to a smaller volume before combustion.
- Gasoline engine: Gasoline engines typically have a lower compression ratio to prevent engine knocking, which is a condition that occurs when the air-fuel mixture ignites prematurely.
Spark plugs:
- ICE: ICEs can have either spark plugs or fuel injectors to initiate combustion.
- Gasoline engine: Gasoline engines use spark plugs to create an electric spark that ignites the air-fuel mixture.
Fuel injection:
- ICE: ICEs can have either port fuel injection or direct fuel injection.
- Gasoline engine: Gasoline engines typically use port fuel injection, where the fuel is injected into the intake manifold before entering the combustion chamber.
Emissions:
- ICEs emit various pollutants such as carbon monoxide, nitrogen oxides, particulate matter, and unburned hydrocarbons. However, modern ICEs are equipped with emission control systems to reduce these emissions.
- Gasoline engines also produce emissions similar to ICEs, and they are subject to emission regulations to minimize their environmental impact.