Fuel Stability

In the presence of air, heat, and water diesel fuel does oxidize. The oxidation of fuel can result in the formation of undesirable gums, deposits and sediments. These adverse byproducts can cause filter plugging, combustion chamber deposit formation, and gumming or lacquering of fuel injection system components, with resultant reduced engine performance and fuel economy. These adverse byproducts can also have the potential to cause fuel system component failures. The following tests are specified for fuel stability.