2004 Dodge Ram 3500 Pickup Owner's Manual - Page 263

STARTING AND OPERATING 263 CAUTION! Only vehicles with the E-85 fuel filler door label can operate on E-85. ETHANOL FUEL (E-85) E-85 is a mixture of approximately 85% fuel ethanol and 15% unleaded gasoline. Fuel Requirements Your vehicle will operate on both unleaded gasoline with an octane rating of 87, or E-85 fuel, or any mixture of these two. For best results, a refueling pattern that alternates between E-85 and unleaded gasoline should be avoided. When you do switch fuels, it is recommended that • you do not switch when the fuel gauge indicates less than 1/4 full • you do not add less than 5 gallons when refueling • you operate the vehicle immediately after refueling for a period of at least 5 minutes Observing these precautions will avoid possible hard starting and/or significant deterioration in drivability during warm up. 5 WARNING! Ethanol vapors are extremely flammable and could cause serious personal injury. Never have any smoking materials lit in or near the vehicle when removing the fuel filler tube cap (gas cap) or filling the tank. Do not use E-85 as a cleaning agent and never use it near an open flame.