Diesel Fuel and DEF Specifications The vendor shall supply the following fuel products in compliance with applicable standards: Ultra-Low Sulfur Diesel (ULSD): o Must meet ASTM D975 and EPA environmental regulations. o Sulfur content of 15 ppm or less. o Free from water, sediment, and other contaminants. Diesel Exhaust Fluid (DEF): o Must comply with ISO 22241 specifications. o Must be free from impurities that could harm diesel engine selective catalytic reduction (SCR) systems. Motor Oils The vendor shall supply OEM-recommended high-quality motor oils that meet or exceed the following standards for use in Ford gasoline engines and Cummins diesel engines: 15W-40 Diesel Engine Oil for use in heavy-duty diesel engines. o Must meet or exceed API CK-4 specifications for heavy-duty diesel engines. o Must comply with Cummins CES 20086 performance specifications for modern Cummins engines. o Must be an OEM-recommended oil for Cummins applications to ensure compatibility with emission control systems and to maintain manufacturer warranty requirements. o OEM-endorsed products such as Valvoline Premium Blue (endorsed by Cummins), Shell Rotella T6, Mobil Delvac 1300 Super, or equivalent products certified for Cummins engines. 5W-30 Gasoline Engine Oil for use in gasoline-powered vehicles. o Must meet or exceed the latest API SP specifications for gasoline engines. o Must comply with Ford WSS-M2C961-A1, WSS-M2C946-B1, or other applicable OEM performance standards depending on the model year and engine configuration (e.g., EcoBoost, naturally aspirated). o Must be an OEM-recommended oil for Ford engines to maintain engine protection and warranty compliance. o OEM-approved oils such as Motorcraft Synthetic Blend, Mobil 1 5W-30, Castrol Edge 5W-30, or equivalent products recognized by Ford Motor Company. Antifreeze/Coolants 50/50 Pre-Mixed Red Antifreeze for Cummins diesel engines (compatible with Cummins standards for heavy-duty use). 50/50 Pre-Mixed Yellow Antifreeze for cutaway gasoline engine vehicles (compatible with industry-standard extended-life coolants).
