1.1 This specifcation covers seven grades of diesel fuel suitable for various types of diesel engines. These grades are described as follows:
1.1.1 Grade No. 1-D SI5- A special-purpose, light middle distillate fuel for use in diesel engine applications requiring a fuel with 15 ppm sulfur (maximum) and higher volatility than that provided by Grade No. 2-D S15 fuel.2
