What type of engine can use either a carburetor or fuel injection?

The type of engine that can use either a carburetor or fuel injection is commonly associated with turbocharged engines. Turbocharged engines utilize a turbine-driven forced induction mechanism that increases the engine's power output. They can be designed to operate with either traditional carburetors or modern fuel injection systems.

Carburetors mix fuel and air before the mixture enters the combustion chamber, which allows for sufficient performance in turbocharged applications, especially in older or performance-oriented engines. However, modern turbocharged engines primarily favor fuel injection due to its ability to offer more precise control over the air-fuel mixture, improved efficiency, and better emission control.

While normally aspirated and supercharged engines can also use either system, they are often optimized for a specific type of fuel delivery. Diesel engines, on the other hand, do not use carburetors at all as they operate on a different principle of fuel injection that is compatible specifically with diesel fuel. Thus, turbocharged engines stand out as versatile in their acceptance of both technologies, making them a suitable answer to the question.