How many gallons of oil does a 6.7 diesel take?
For the common 6.7-liter diesel engines found in modern trucks, the oil capacity varies by manufacturer. The Ford 6.7L Power Stroke typically takes about 15 quarts, or 3.75 gallons, of engine oil with a new filter. The Ram 6.7L Cummins usually requires about 13 quarts, or 3.25 gallons, with a new filter.
The exact capacity can depend on the model year, engine configuration, and the type of oil filter installed. Always verify the capacity in the vehicle’s owner's manual or service documentation for your specific truck and VIN.
Ford 6.7L Power Stroke capacity
Below are the standard oil capacities for the Ford 6.7L Power Stroke, as listed in typical Ford manuals and service guides. These figures refer to the engine oil capacity with the filter installed.
- Oil capacity with filter: 15 quarts (3.75 gallons)
Because configurations and filter options can vary by year or trim level, always confirm the exact capacity for your particular vehicle in the owner's manual or a Ford service bulletin.
Ram 6.7L Cummins capacity
The Ram 6.7L Cummins used in Ram 2500/3500 pickups has its own standard oil capacity, generally cited in Ram’s service materials. This figure reflects the oil capacity with the filter in place.
- Oil capacity with filter: 13 quarts (3.25 gallons)
As with Ford, slight variations can occur due to year, model, or aftermarket filter choices. Always check the exact specification for your VIN in the official Ram documentation or owner's manual.
Summary
In short, the number of gallons a 6.7-liter diesel takes depends on the engine family: about 3.75 gallons for Ford’s 6.7L Power Stroke and about 3.25 gallons for Ram’s 6.7L Cummins. Always verify the exact capacity in the owner’s manual or service documentation for your specific truck and year.
How much oil does a 6.7 Cummins hold with a filter change?
According to the official specifications from Cummins, the oil capacity for the 6.7L Cummins engine is as follows: 2007.5 - 2018 6.7L Cummins: 12 quarts (11.4 liters) with filter change. 2019 - Present 6.7L Cummins: 10 quarts (9.5 liters) with filter change.
How much oil does a 6.7 L diesel engine take?
15 quarts
How Much Oil Does a Powerstroke 6.7 Hold? The 6.7 Powerstroke's oil capacity is 15 quarts if your Ford F-250 to F-600 was produced after 2022. Those from 2011 to 2022 should hold approximately 13 quarts.
What is the best oil for a 6.7 Cummins?
For the 2025 Ram 6.7L Cummins engine, the recommended oil type is a full synthetic oil meeting API CK-4 or CJ-4 specifications, with a viscosity of 10W-30 for temperatures above 0°F and 5W-40 for colder climates or heavy-duty use like towing.
How much oil does a 2018 Ram 2500 6.7 take?
12 quarts
Engine Oil
Capacity: 12 quarts (with filter).
