How much transmission fluid does a 2012 Ram 3500 6.7 hold?
For the 2012 Ram 3500 with the 6.7-liter Cummins and the 68RFE six-speed automatic, you should plan for roughly 15 quarts of ATF+4 to achieve a full system refill. This figure covers the fluid in the pan, cooler lines, and the torque converter.
In practice, the exact amount depends on the servicing method. A simple pan drain-and-fill removes much less fluid than a complete system flush or a converter drain, and replacing the transmission filter can add to the total. Always use the fluid type specified by the manufacturer (Mopar ATF+4) and consult the vehicle’s manual for your exact configuration and service instructions.
What transmission is in the 2012 Ram 3500 6.7?
The truck uses the 68RFE automatic transmission, a robust six-speed unit paired with the 6.7L Cummins diesel. Fluid capacity figures published for this transmission assume a full system fill, including fluid in the torque converter and cooler circuit. Actual amounts can vary by model year, transmission condition, and service method.
Capacity and servicing considerations
The commonly cited total fluid capacity for the 68RFE in this era is about 15 quarts (roughly 14.2 liters) when performing a full refill. The pan itself holds the majority of the fluid, but the converter and lines retain a portion that must be added back during a complete service. If you only drain the pan, you will be removing and replacing around 9–11 quarts, depending on pan capacity and whether the filter is changed.
Fluid specification
Use Mopar ATF+4 for the 68RFE. Some third-party fluids may claim compatibility, but following the OEM specification helps ensure proper shift quality and transmission life.
Service notes
When servicing, follow the recommended procedure in the owner's manual or a certified shop guide. After refilling, check the transmission level according to the manufacturer’s guidelines and adjust careful to the correct range when the transmission is warm and the vehicle is on level ground.
Summary
In summary, a 2012 Ram 3500 6.7 with the 68RFE automatic holds about 15 quarts of ATF+4 for a full system fill. Expect to remove roughly 9–11 quarts when draining only the pan, with the potential for more fluid to be added if the torque converter and cooler lines are drained or if the filter is replaced. Always verify the exact amount with the service manual and use the recommended fluid type.
