Grade No. 1-D and Low Sulfur 1-D: A light distillate fuel for applications requiring a higher volatility fuel for rapidly fluctuating loads and speeds as in light trucks and buses. The specification for this grade of diesel fuel overlaps with kerosene and jet fuel and all three are commonly produced from the same base stock. One major use for No. 1-D diesel fuel is to blend with No. 2-D during winter to provide improved cold flow properties. Low PropertyGrade LS # 1Grade LS # 2Grade No. 1 - D Grade No. 2 - D Grade No. 4 - DFlash point °C, min3852385255Water and sediment, % vol, max.0.050.050.050.050.5Distillation temp., °C, 90%Min.--282--282--Max.288338288338 --Kinematic Viscosity, mm2/s at 40°CMin.1.31.91.31.95.5Max.2.44.12.44.124Ramsbottom carbon residue,on 10%, %mass, max.0.150.350.150.35--Ash, % mass, max.0.010.010.010.01 0.10Sulfur, % mass, max0.050.050.50.50 2.00Copper strip corrosion, Max 3 hours at 50°CNo. 3No. 3No. 3 No. 3 --Cetane Number, min.4040404030 (1) Cetane index4040-- -- -- (2) Aromaticity, % vol. max3535-- -- --
sulfur fuel is required for on-highway use with sulfur level < 0.05%.