2004 Dodge Ram 3500 Pickup Owner Manual Diesel - Page 345

MAINTAINING YOUR VEHICLE 345 NOTE: Mixing coolant types will decrease the life of the engine coolant and will require more frequent coolant changes. When additional coolant is needed to maintain the proper level, add the recommended concentration of antifreeze and water to the overflow bottle. Do not overfill. NOTE: Failure to follow the antifreeze concentration and replacement recommendations, or failure to use antifreeze formulated to prevent corrosion of all cooling system metals, may result in radiator plugging, overheating, or cooling system leaks such as in core hole plugs. WARNING! Never add coolant to the radiator when the engine is overheated. Do not loosen or remove pressure cap to cool an overheated engine. The coolant is under pressure and severe scalding could result. Recommended Engine Coolant Refer to Recommended Fluids, Lubricants and Genuine Parts for the correct Fluid type. 7