A car fuel filter is a component of a car’s fuel system that removes contaminants from the gasoline or diesel fuel before it reaches the engine. It helps to ensure that the engine runs smoothly and efficiently by preventing dirt, rust, and other particles from clogging the fuel injectors or carburetor and potentially causing engine damage. Fuel filters should be replaced periodically as part of routine car maintenance, typically at regular intervals specified by the vehicle manufacturer. A dirty or clogged fuel filter can reduce fuel flow to the engine and negatively impact performance, fuel efficiency, and acceleration. Fuel filters are typically located in the fuel line between the fuel tank and the engine.