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<p>The formulation of diesel fuel can have an effect upon the amount of particulate
matter formed during combustion. There is evidence, for instance that biodiesel blends
produce slightly less particulate matter, in general, than do pure petroleum-based
diesel fuels. We would not, however, expect the differences in rates of particulate
formation between fuels meeting the statutory requirements of the Motor Fuels (Composition
and Content) Regulations, and meeting the EN 590 industry standard to affect the operation
of diesel particulate filters.</p>
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