Primary Fuels Diesel fuel, AA-52557, grade DF-2 Do not use below +32°F (0°C) (NATO code no. F-54) Diesel fuel, AA-52557, grade DF-A All temperatures (NATO code no. F-54) Turbine fuel, aviation, kerosene type, Do not use below -58°F (-50°C) MIL-DTL-83133, grade JP-8 (NATO code no. F-34) Alternate I Fuels Turbine fuel, MIL-DTL-5624, grade JP-5 Do not use below -51°F (-46°C) (NATO code no. F-44) Diesel fuel, MIL-F-16884 Do not use below +15°F (-9°C) (NATO code no. F-75 or F-76) Emergency Fuel Turbine fuel, MIL-DTL-5624, grade JP-4 Do not use below -72°F (-58°C) (NATO code no. F-40) TM 9-2320-386-10 1-12 Change 1 1-15. PERMISSIBLE FUELS NOTE Primary fuels listed below must be used whenever possible. Alternate I fuels are most desirable if primary fuels are not available, with emergency fuel the least desirable. FUEL TEMPERATURE LIMITS ________ WARNING ________ Never mix JP-4 turbine fuel with other fuels outside of vehicle fuel tank. Any mixing should be done by adding fuels to fuel tank. JP-4 turbine fuels are highly combustible and may explode, resulting in injury to personnel. CAUTION ______ If engine runs rough when using any emergency fuel, add 10% to 30% diesel fuel to smooth engine performance. Failure to add diesel fuel may result in damage to pistons, clogging of fuel fil- ter, and early failure of fuel injectors. Table 1-2. Permissible Fuels.