Dodge Ram Ram 1500, DS/DJ (USA / CAN)

Additional Notes

• The Dodge Ram 1500 DS/DJ cooling system capacity splits into two distinct values across the 2008-2010 engine lineup. The 3.7 V6 and 4.7 V8 configurations both hold 13 liters, while the 5.7 V8 requires 15 liters, reflecting the larger displacement and greater thermal load of the bigger engine.
• The 13-liter capacity shared by the 3.7 V6 and 4.7 V8 applies equally to both 4x2 and 4x4 drivetrain variants, indicating that the addition of front axle hardware in the 4x4 configuration does not alter the cooling system volume for those engine sizes.
• The 5.7 V8 cooling system capacity of 15 liters is consistent across 4x2 and 4x4 drivetrains, meaning the two extra liters relative to the smaller engines are attributable solely to the engine itself rather than drivetrain differences.
• All six configurations across the 2008-2010 model years share a single coolant change interval of 170,000 km or 60 months under normal use conditions. The 60-month figure equals five years, making the time-based limit a practical ceiling for vehicles that accumulate lower annual mileage.
• The uniform 170,000 km / 60-month interval across all engine and drivetrain combinations for 2008-2010 means the service schedule is driven by fluid degradation over time and distance rather than by engine size or configuration-specific thermal demands.
• Cooling system capacity figures represent the total volume of the entire system, including the engine block, cylinder head passages, radiator, heater core, and hoses. A 15-liter fill on the 5.7 V8 reflects the cumulative volume of all those interconnected components rather than any single reservoir.