Specifications include, but are not limited to: . DIESEL FUEL OILS – ASTM D975-21 or latest revisions 2.1.1. All fuel is to conform to ASTM D-975 with the following requirements. • Cetane Rating: 45 minimum • Sulfur Content: 15 parts per million (Ultra Low Sulfur Diesel, ULSD) • Filterability: .05% water and sediment Maximum • Dye: Red for tax exempt per IRS rules 2.1.2. DIESEL BLENDS: Any location may request a specific blend at any time. All blends will be with No. 1 ultra low sulfur kerosene. There is no deviation from the specified blends. If the blend is not specified the following will apply: • October 1 to December 15 – 70% diesel/30% kerosene • December 16 to March 1 – 50% diesel/50% kerosene • March 2 to March 31 – 70% diesel/30% kerosene • April 1 to October 1 – 100% diesel
