Direct fuel injection is a technology used in modern engines to improve efficiency and performance. Instead of mixing fuel with air before it enters the combustion chamber, direct fuel injection sprays fuel directly into the chamber at high pressure. This allows for more precise control of the fuel-air mixture, leading to better combustion and increased power. This method also helps reduce emissions, making vehicles more environmentally friendly. By optimizing the combustion process, direct fuel injection can enhance fuel economy, allowing drivers to get more miles per gallon. Many car manufacturers, including Toyota and Ford, have adopted this technology in their latest models.