Effect of Low-Lubricity Fuels on Diesel Injection Pumps - Part I: Field Performance

Impact of oxygen and nitrogen compounds on the lubrication properties of low sulfur diesel fuels

“…The field trials and pump rig durability testing of both Swedish Class 1 and 2 diesel fuels showed that their inherent lubricity was unacceptable [2]. Since then, considerable efforts have expended on investigating the lubricity of low sulfur diesel fuels [3][4][5][6][7][8][9].…”

Lubricating Aspects of Automotive Fuels

“…The use of low sulphur diesel fuels led to numerous pump failures. To combat the loss of this lubrication, packages of additives that increase lubricity could be blended with the fuel prior to distribution [9]. The lubricity characteristics of diesel fuel are similar to aviation turbine fuels, up to the middle of the 1980s, but the lubricity of diesel fuels was not considered a significant factor that could lead to serious problems and little work concerning diesel lubricity had been carried out.…”

“…In Europe and the USA, such fuels have been shown to reduce the life of distributor type pumps by up to 95%. Field trials and pump rig durability testing of both Swedish Class 1 and 2 showed that their inherent lubricity was unacceptable [9][10][11][12][13][14][15]. Diesel fuel work has revealed that humidity, which reflects environmental water vapour pressure, can have an important influence on the friction and wear, although this was not taken into account in test work until recently [1][2][3][4][5][6][7][9][10][11][12][13][14][15].…”

Bio‐diesel lubricity: correlation study with residual acidity

“…The reports indicate that fuel with low sulphur and aromatics levels has poor lubricity. [1][2][3] Dziegielewski et al 4 concluded that the lubricity of diesel fuels is best when aromatics and nparaffin content is predominant. Wang et al 5 found that some low sulphur fuels can have lubricity as high as some high sulphur fuels, and lubricity is thus likely to be independent of sulphur levels.…”