This invention relates to a fuel filter for use with internal combustion
engines. The fuel filter includes a fuel additive that can be released
into fuel. The rate of release for the fuel can be controlled. In one form
the fuel additive can be mixed with a matrix material and released at a
substantially constant rate to maintain a uniform level of fuel additive
in the fuel. Use of the present invention provides a fuel filter having an
extended life span that is longer than fuel filters typically used with
combustion engines.
