Ford recommends their own Ford Motorcraft oil, but there is a long list of diesel motor oils that comply with the Ford recommended standard.
Full Synthetic Oil is the preferred oil for Powerstroke engines and is used all over the world in many different applications ranging from hi-tech emerging technology users, such as Mercedes Benz, Aston Martin, Ford, Koenigsegg, and Caterpillar. Synthetic oils are designed for specific purposes, and their core molecular structure is created for performance and durability.
Synthetic Blend Oil is a combination of synthetic oil and organic oil. Organic oil is slowly decreasing in use, but in a blend, it can provide some additional performance criteria for specific requirements but they are slowly being replaced by full synthetics as the organic oil industry prices are geopolitically volatile.
Since 6.7L Powerstroke engines with their HEUI injectors are notorious for stiction, together with the extreme heat generated by their action, and only a true synthetic will provide full protection over longer periods of use. With this in mind, any full synthetic or synthetic blend mentioned in the following list is the oil for use in any 6.7 Powerstroke oil change.
See the below table for how much oil does a 6.7 Powerstroke take. There are also the recommended oil viscosity ratings for these motors.
How Much Oil Does a 6.7 Take?
| Oil Capacity: | 13 quarts w/ filter | |
| Oil Requirements: | • CJ-4 or CJ-4/sm engine oil is required to ensure emissions system compatibility • 10W-30 is the preferred motor oil viscosity for normal use • 5W-40 or 15W-40 engine oil is recommended for severe duty or biodiesel applications. Viscosity recommendations vary with ambient temperature; refer to owners manual |
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