2004 Dodge Ram 3500 Pickup Owner Manual Diesel - Page 324

324 MAINTAINING YOUR VEHICLE • Do not use alcohol or gasoline as a fuel blending agent. They can be unstable under certain conditions and be hazardous or explosive when mixed with diesel fuel. • If an engine has been operating and the coolant is hot, allow the engine to cool before you slowly loosen the filler cap and relieve the pressure from the cooling system. • To avoid burns, remember that the engine components will stay hot after the engine is shut off. • Do not use gasoline or other flammable materials to clean parts. Always use approved cleaning solvents. • Relieve all pressure in the fuel, oil and cooling systems before any lines, fittings or related items are removed or disconnected. Be alert for possible pressure when disconnecting any device from a system that utilizes pressure. Do not check for pressure leaks with your hand. High pressure oil or fuel can cause personal injury. WARNING! Do not open the high pressure fuel system with the engine running. Engine operation causes high fuel pressure. High pressure fuel spray can cause serious injury or death. • Important: All maintenance other than that listed in this manual, as well as some procedures listed here, MUST be performed by your local Dodge Truck Dealer. Your authorized Dodge Dealer has been trained and has the necessary parts to maintain your engine.