Gasoline - Each contractor agrees to provide standard unleaded gasoline with a minimum anti-knock index of 87, 89 or 91, R+M/2, whichever product is ordered by the City. Minimum octane levels will be determined by availability, facility location/elevation and the specifications contained herein. Unleaded products shall comply with ASTM D4814-01 specifications. Products supplied under the resulting contract must be delivered in compliance with ordinances governing regulatory actions, such as oxygenated fuel, unless indicated otherwise by the agency. Diesel - Each contractor agrees to provide ultra low sulfur red dyed diesel fuel with a minimum 40 cetane index or maximum 35 volume percent aromatic; and sulfur content of 15 ppm maximum; and meeting ASTM D975-02 specifications...