1) The document discusses fuel filtration for modern diesel fuels, covering changes in fuel composition, diesel engine fuel system basics, and fuel filter design, media, and efficiency. 2) It describes various fuel filter components and how they work, including primary filters, secondary filters, and water separators. 3) The document provides information on maintaining fuel quality and filter performance, and potential contaminants that may be observed in diesel fuel filters.

1. Fuel Filtration for Modern Diesel Fuels National Biodiesel Board Technician Outreach Program

4. Diesel fuel and its injection Common Rail Diesel and Unit injection fuel injectors operate at high pressures They are electronically controlled for optimum fuel metering and complete combustion End goal is cleaner diesel emissions

16. What could I see in a Diesel Fuel Filter? Rust or iron Water saturated filter paper

17. What could I see in a Diesel Fuel Filter? Oxidation or Aphaltenes Diesel Fuel Paraffin wax

18. What could I see in a Diesel Fuel Filter? Glycerin from off specification biodiesel Other contaminants like water and sediment