Tribological behavior of diesel fuels and the effect of anti-wear additives

► Main reason for the lubricity of diesel fuels is oxygen- and nitrogen-containing polar compounds. ► Anti-wear additive becomes the prime requirement to be mixed with desulfurized diesel fuel. ► Biodiesel and chemical polar compounds are the major class of lubricity additives. ► Anti-wear property of additives increases with increase in unsaturation and hydroxyl groups.