The article describes the systematic studies on the lubrication properties of biodiesel, low sulfur diesel fuel, and their blends. Biodiesel from nonedible oils ( e. g., Jatropha curcas, Pongamia glabra, Madhuca indica, and Salvadora oleoides) were prepared by base-catalyzed transesterification using methanol; high-speed diesel (HSD) used was from Panipat refinery. The lubricity evaluation of biodiesel and its blends (5-50%) was carried out as per the ISO-12156 method using high-frequency reciprocating rig (HFRR) test rig. The results indicate that addition of biodiesel to HSD improves the lubricity and provides a stable film on the metal surface. Addition of biodiesel substantially reduces wear scar diameter (WSD). The results were also comparable with pure ester-type compounds synthesized in our laboratory. We concluded that the preferred range of blending biodiesel is 5-20%. WSD of neat HSD is around 0.37 mm, whereas that of all four biodiesels is below 0.20 mm, which is around 50% or less than HSD used. The reduction in WSD at 5% blend is not appreciable except in the case of Salvadora biodiesel, which contains a high percentage of sulfur. At 20% level, around 45% reduction in WSD can be achieved.