The Lubricity Requirement of Low Sulfur Diesel Fuels

Paper #:
  • 942015

Published:
  • 1994-10-01
Citation:
Wang, J. and Reynolds, D., "The Lubricity Requirement of Low Sulfur Diesel Fuels," SAE Technical Paper 942015, 1994, https://doi.org/10.4271/942015.
Pages:
8
Abstract:
An engine rig test and a scuffing BOCLE test have been used to investigate the lubricity of low sulfur diesel fuels and its relationship with unit injector wear in heavy duty diesel engines. The rig test effectively ranks 11 selected fuels/fluids according to their actual performance. The scuffing BOCLE test correlates with the rig test by showing the same ranking capability, and it is easy to perform. A similar correlation has been established using ISO reference fuels. The scuffing BOCLE test has been used to study 37 fuels randomly sampled from the field. The data shows that there is indeed a reduction in lubricity of low sulfur fuels. The variation in lubricity of low sulfur fuels is also much greater than high sulfur fuels. Data in this study shows that transition from good to poor lubricity usually occurs between 2500 to 3000 grams in the scuffing BOCLE.
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