Ram Trucks Ram 2500/3500, DJ/D2/DD (USA / CAN)

Additional Notes

• All six configurations share an identical manual transmission fluid capacity of 4.7 liters, which is consistent with a service fill volume for a heavy-duty manual gearbox rather than a full overhaul or dry fill, where additional fluid would typically be required to prime internal passages and a new torque converter is not a factor in manual units.
• The 60,000-mile or 48-month change interval applies exclusively under severe use conditions across all listed Ram 2500/3500 6.7 D configurations from 2013-2019, meaning the interval is not a standard or normal-use recommendation but one triggered by more demanding operating environments such as frequent towing, off-road use, or extreme temperatures.
• The dual threshold structure of the interval, 60,000 miles or 48 months, means whichever limit is reached first governs the service point, a common approach for fleet and work-duty vehicles where annual mileage can vary widely.
• The 4x2 and 4x4 drivetrain variants carry the same 4.7-liter manual transmission fluid capacity, indicating the transmission unit itself is shared between rear-wheel-drive and four-wheel-drive configurations in the 6.7 D application across 2013-2019.
• The specifications span overlapping model year groupings, with 2013-2014, 2014-2015, and 2015-2019 listed as distinct entries for both 4x2 and 4x4 variants, reflecting incremental specification revisions that were tracked separately even when capacity and interval values remained unchanged.
• The 48-month time limit on the severe-use interval means a vehicle accumulating low annual mileage would still require a fluid change at the four-year mark, acknowledging that fluid degrades chemically over time regardless of mileage.