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Soot collector particulate filter

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2008 Ford F-250 Super Duty King Ranch exhaust particulate filter

The particulate filter is part of the "Ford Clean Diesel Technology" exhaust system and is responsible for removing soot from burned diesel fuel. This system can only tolerate Ultra Low Sulfur Diesel fuel, but Ford allows a 5 percent blend of biodiesel.

photo © Adrian Gable
The taskmaster of the Power Stroke's ultra clean emissions is a super-efficient exhaust system that incorporates a diesel particulate filter (DPF) and an oxidation catalyst that work together to remove 97% of particulate matter (soot) and bring total emissions to gasoline engine levels. Ultra Low Sulfur Diesel (ULSD) fuel is required for this engine. A 5-percent blend of biodiesel is allowed and it actually enhances the lubricity of the fuel for better fuel system lubrication.

Read more: 2008 F-250 Super Duty 4X4 Diesel test drive and review
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