Fuel filters are usually quite small. Their job is to catch tiny foreign particles in gasoline before they reach your car's fuel injectors or carburetor. A clogged fuel filter can make your engine falter and sputter at random, often mimicking more severe and costly problems. In some cases, a congested fuel filter can restrict the flow of gasoline completely, making it impossible to even start the car. To ensure your automobile's peak performance, this filter should be replaced about once a year, or once every 10,000 miles for most cars.
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