How much oil does a 2013 Ram 6.7 take?
The 2013 Ram with the 6.7-liter Cummins turbo diesel generally requires about 12–14 quarts of engine oil for a full drain-and-fill, with a new oil filter. Plan on roughly 13 quarts to be safe and to allow topping up after the filter change.
In more detail, the 2013 Ram 2500 and 3500 models use the 6.7 L Cummins ISB turbo diesel. Oil capacity can vary slightly depending on whether you replace the oil filter and the drain method. Always confirm with the owner's manual or service data for your exact build, and use the recommended oil grade (commonly 5W-40 synthetic oil meeting API CK-4 or CJ-4, or newer) and change intervals.
Oil capacity specifics
Below are the commonly cited figures for a full oil change on this engine. These numbers assume you replace the oil filter and perform a complete drain. If you do not replace the filter, or you use a different drainage procedure, the amount will be slightly different.
- Typical capacity with a new filter: about 12–13 quarts (11.4–12.3 L)
- Maximum capacity in some service specs or after a complete drain: up to around 14 quarts (13.2 L)
Always rely on the dipstick during the fill to reach the proper level, and run the engine to operating temperature before rechecking and topping off as needed.
Oil type and maintenance considerations
Use a high-quality full-synthetic engine oil that meets or exceeds the API CK-4 or CJ-4 specification (or newer). The standard OEM recommendation for the 2013 6.7L Cummins is typically 5W-40 synthetic oil. Adhere to the service interval specified for your driving conditions and climate, and replace the oil filter with every change to maximize engine protection.
Important notes for owners
Some model codes and regional specs may vary slightly in official documentation. If you own a 2013 Ram 2500 or 3500 with the 6.7L Cummins, you should verify the exact capacity in the service manual for your chassis code, since final values can differ based on the oil filter model and any factory updates.
Summary
In short, plan on roughly 12–14 quarts of engine oil for a full drain-and-fill on a 2013 Ram with the 6.7L Cummins, using a new filter and the recommended oil grade (5W-40 synthetic, API CK-4/CJ-4 or newer). Always top off to the correct level with the dipstick, and consult your owner's manual for exact figures tied to your exact truck configuration.
