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Diesel Fuel Contamination and Fuel Filter Plugging
Water -- is the greatest concern because it is the most common form of contaminant. Water may be
introduced into the fuel supply during fueling when warm, moisture laden air condenses on the cold
metal walls of fuel storage tanks or from poor housekeeping practices. The effects of water in diesel
fuel can be serious. Water can cause a tip to blow off an injector, or reduce the lubricity of the fuel
which can cause seizure of close tolerance assemblies such as plungers.