In a modern internal combustion engines, the fuel filter is an essential component designed to remove contaminants from the fuel before it enters the combustion chamber. Its primary responsibilities are to keep the engine running as long as possible, to ensure that it runs as near peak performance at all times and good fuel economy is observed. But thanks to the advent of sophisticated fuel filters with a multi-layered construction that trap particles as small as two micrometers, your new-age fuel filter will prevent those nasties in gumming up your expensive-to-replace fuel injectors and combustion chamber. From passenger vehicles to heavy-duty machinery, this component is critical and contributes to clean fuel use which is necessary for efficient operation and thereby emissions reduction.