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Ford 6.7L Powerstroke Engine Oil and Fluid Capacity & Specs

Ford 6.7L Powerstroke engine is an exceptional performer. And behind the impressive performance lies a well-engineered system that requires careful attention to fluid and oil capacities and specifications, and a good maintenance schedule.

At present, 6.7 Powerstroke oil capacity is 15 quarts, coolant capacity is 35 quarts, transmission fluid capacity is 16.3 quarts, and fuel capacity ranges between 26 – 68 gallons.

6.7 Powerstroke engine’s oil capacity for 2011-2022 year models is 13 quarts. In 2023 model, it is increased to 15 quarts.

6.7 Powerstroke Engine Oil Capacity for All-year:

  • 2011 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2012 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2013 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2014 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2015 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2016 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2017 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2018 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2019 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2020 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2021 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2022 Ford 6.7 powerstroke oil capacity is 13.0 quarts or 12.3 liters.
  • 2023 Ford 6.7 powerstroke oil capacity is 15.0 quarts or 14.2 liters.

Knowing and understanding the 6.7 Powerstroke fluid and oil capacity & specs is essential to unlocking the full potential of this engine. Thus, without further ado, dive into it. 

Key Takeaways:

  • Ford’s standard for engine oil is WSS-M2C171-F, the capacity is 13-15 quarts and the service interval is between every 2,500 – 10,000 miles.
  • Engine coolant capacity is 35.1 quarts and requires initial coolant change after 105,000 miles or 6 years.
  • The fuel capacity depends on the vehicle type, it ranges between 26 – 68 gallons.
  • 6.7l Powerstroke’s front differential capacity is 3 quarts and the rear differential fluid capacity ranges from 3.5 – 7 quarts.

A Quick Chart: Ford 6.7L Powerstroke Fluid and Oil Capacity & Specs

Don’t have the time and patience to go through the entire guide? Well, then just go through this chart, it’ll let you know about all the capacities, specs, and intervals. 

Oil/FluidCapacityOil/Fluid SpecRecommended Service intervalSuggestion
Engine Oil2011 to 2022: 13 quarts

2023: 15 quarts
❖ WSS-M2C171-F1

Temp Above 20° – SAE 15W40

❖ Temp Above -0° – 10W30

❖ Temp Above -20° – 5W40
➢ Under Normal Condition: Every 10,000 miles.

➢ Under Severe Operating Condition: Every 2,500 – 7,500 miles.
Recommended engine oil for 6.7l Powerstroke:
● Blue Diamond PAO Synthetic 5W-40.
● Blue Diamond PAO Synthetic 10W-30.
● Green Diamond Synthetic 5W-40.
● Green Diamond Synthetic 10W-30.
Engine Coolant●Primary: 35.1 Quarts or 33.2LWSS-M97B57-A2➢ Initially after 105,000 miles or 6 years.

➢ After that, every 45,000 miles or 3 years.
Motorcraft® Orange Prediluted Antifreeze/Coolant
●Secondary: 15.1 Quarts or 14.3L
Engine Coolant Additive16 fl ozN/AEvery 105,000 miles or 5 years
Brake FluidFill between min and max in the reservoirDOT 3 Brake FluidEvery 3 years








Fuel
● Short box: 26 Gallons






Ultra Low Sulfur Diesel 







According to need
The manufacturer recommends using Everyday Diesel Treatment with the diesel every 6,000 miles to increase the fuel efficiency
● Long box: 37.5 Gallons
● Regular cab long box: 26 Gallons
● Midship chassis cab: 28 Gallons
● Aft of axle chassis cab: 40 Gallons
● Chassis can dual tanks: 68 Gallons
Automatic Transmission Fluid16.3 QuartsWSS-M2C949-AEvery 150,000 milesNever mix  Mercon, Mercon V, and Mercon SP together
Front Differentials3 QuartsWSP-M2C197-AEvery 150,000 milesChange the differential oil immediately if the differential has been submerged in water. 



Rear Differentials 
● Sterling 10.50”: 3.5 Quarts


WSS-M2C942-A
➢ Initial change should be after 100,000 miles.

➢ After than every 50,000 miles
● Dana 80: 4.2 Quarts
● Dana S110:7 Quarts
● Dana S130: 7 Quarts
Diesel Exhaust Fluid8 Gallon or 30.2LWSS-M99C130-AEvery 15,000 miles or 12 months
Transfer Case Fluid2 QuartsWSS-M2C938-A➢ Under Normal Operating Condition: Every 150,000 miles

➢ Under Severe Operating Condition: Every 60,000 miles
Recommended transfer case fluid for 6.7 Powerstroke:

MERCON LV Transmission Fluid
AC Refrigerant26.5 ozWSH-M17B19-AEvery 100,000 miles or 5 years
AC Refrigerant Oil5.1 fl ozWSH-M1C231-BEvery 100,000 miles or 5 years


Power Steering Fluid
Air brake equipped: 5.2 QuartsWSS-M2C195-AEvery 30,000 miles or 3 years
Hydraulic brake equipped: 6.1 Quarts
Windshield Washer FluidFill as requiredWSS-M2C195-AEvery 6 months

Learn More: 6.7 Powerstroke Fuel Filter Change Problems.

In-depth Guide to 6.7 Powerstroke Diesel Engine Fluid and Oil Capacity & Specs

Done with the chart? Go through the following sections to know more in detail. 

● Engine Oil

Doesn’t matter how powerful an engine is, as long as it’s not provided with the proper oil, it won’t perform as expected. The manufacturer recommends using the following engine oils for optimum performance.

Engine OilsTemperature
Blue Diamond PAO Synthetic 5W-40Temperature Above -20°
Blue Diamond PAO Synthetic 10W-30Temperature Above -0°
Green Diamond Synthetic 5W-40Temperature Above -20°
Green Diamond Synthetic 10W-30Temperature Above -0°

6.7l Powerstroke’s engine oil capacity depends on the specific model year and configuration. But usually, it’s between 13 – 15 quarts including the filter change.

To ensure top-notch performance you need to give attention to the oil viscosity as well. Ford recommends different viscosities for different temperatures.

  • Temp Above 20° – SAE 15W40
  • Temp Above -0° – 10W30
  • Temp Above -20° – 5W40

Ford recommends changing the engine oil every 10,000 miles under normal operating conditions. And if the vehicle has been used severely, in that case, the coolant change should take place between 2,500 – 7,500 miles. 

● Engine Coolant

An engine consists of several metal parts that are constantly rubbing against each other which causes friction and heats the engine. And that significantly reduces the life expectancy of 6.7 Powerstroke. Coolant is what makes sure that the friction and heat are reduced to minimum level.  

The primary engine coolant capacity of 6.7l Powerstroke is 35.1 quarts and the secondary coolant capacity is 15.1 quarts. Ford’s recommended coolant for 6.7l Powerstroke is Motorcraft® Orange Prediluted Antifreeze/Coolant.

If that specific one isn’t available, any coolant that meets the Ford’s standard (WSS-M97B57-A2) will do. And the recommended initial coolant change interval is after 105,000 miles or 6 years. After that, every 45,000 miles or 3 years. 

● Engine Coolant Additive

Coolant additives are used to improve corrosion protection, water pump lubrication, and similar properties of the coolant. Ford’s coolant additive capacity is 16 fl oz. 

That being said, not all vehicles require coolant additives. Go through the user manual or contact Ford’s customer service to find out whether your specific vehicle model requires an additive or not. 

● Brake Fluid

Like most other fluids, the brake fluid capacity varies depending on the vehicle model and year. However, on average Ford’s Powerstroke integrated vehicles come with 0.5 – 2 quarts of brake fluid capacity. 

But you don’t need to worry about the capacity, just keep pouring the fluid until the level reaches between the min and max mark on the reservoir.

Ford recommends using DOT3 brake fluid and changing the fluid every 3 years. 

● Fuel

Different 6.7l Powerstroke vehicles come with different capacity tanks. Here’s the capacity of different vehicles –

Vehicle TypeFuel Capacity
Short box26 Gallons
Long box37.5 Gallons
Regular cab long box26 Gallons
Midship chassis cab28 Gallons
Aft of axle chassis cab40 Gallons
Chassis can dual tanks68 Gallons

For optimum performance, the manufacturer recommends using Ultra Low Sulfur Diesel. And to improve the 6.7l Powerstroke’s fuel mileage, it’s recommended to use everyday diesel treatment every 6,000 miles. 

● Automatic Transmission Fluid

The automatic transmission fluid capacity of 6.7l Powerstroke is 16.3 quarts. Since the capacity varies depending on the model, make sure to go through the user manual for the accurate capacity of your vehicle. 

Ford suggests changing the ATF every 150,000 miles and also instructs to not mix Mercon, Mercon V, or Mercon SP together. 

● Differentials

There are two types of differentials, front and rear. The capacity ranges from 3 – 13 quarts. Here are the capacities of various differentials:

  Front DifferentialCapacity 
3 quarts
Rear DifferentialsCapacities
Sterling 10.50”: 3.5 Quarts
Dana 804.2 Quarts
Dana S1107 Quarts
Dana S1307 Quarts

Ford recommends changing the differential fluids initially after 100,000 miles. And then the regular change should be every 50,000 miles. If for any reason the differentials have been submerged in water, the fluids should be changed immediately. 

● Diesel Exhaust Fluid

Ford’s standard for diesel exhaust fluid is WSS-M99C130-A, make sure to use fluid that meets or exceeds this standard. Otherwise, the efficiency won’t be as expected. 

The DEF capacity is 8 gallons and the recommended service interval is every 15,000 miles or 12 months. In case of severe use, the fluid change should be done earlier. 

● Transfer Case Fluid

6.7l Powerstroke’s transfer case fluid capacity is 2 quarts and the recommended service interval is 150,000 miles under normal operating conditions. And 60,000 miles, under severe operating conditions. 

The manufacturer suggests using Mercon Low viscosity transmission fluid in the transfer case. However, if that’s not an option, any fluid that meets the standard (WSS-M2C938-A) will work fine. 

● AC Refrigerant & Oil

The AC refrigerant capacity is 26.5 oz. and the refrigerant oil capacity is 5.1 fl oz. Both the oil and refrigerant should meet Ford’s standard which is WSH-M17B19-A for refrigerant, and WSH-M1C231-B for oil. 

Ford’s recommended service interval for both these is every 100,000 miles or 5 years. 

● Power Steering Fluid

If the vehicle has air brakes equipped, then the power steering fluid capacity would be 5.2 quarts. And if equipped with a hydraulic brake then the capacity would be 6.1 quarts.

It’s recommended to change the fluid every 30,000 miles or 3 years and the standard for power steering fluid is WSS-M2C195-A

● Windshield Washer Fluid

Properly fill the windshield washer fluid reservoir and change the fluid every 6 months depending on the use. If you didn’t wash the windshield much, in that case, changing the fluid after 1 year would be fine. 

Conclusion 

Understanding the 6.7 Powerstroke fluid and oil capacity & specs is vital for maintaining the engine’s optimum performance and lifespan. Plus, knowing the 6.7 Powerstroke’s engine specs will also help you dodge many engine problems.

Lower than required levels of fluid, low-quality, and delayed fluid/oil changing can severely damage the engine which is the last thing that any vehicle owner wants. With that said, wrapping it up, hope you got all your answers. 

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