6.4L Powerstroke Fluid Capacity & Specs
A critical part of proper diesel maintenance is using the right fluids and the right oil. Adhering to a strict maintenance schedule and using the correct fluid, oil, and filters is especially important on the 6.4L Powerstroke. If you don’t, you may experience some of the 6.4L Powerstroke’s common problems. Those problems can cost you hundreds or even thousands of dollars to fix. It’s much better to be proactive and prevent those problems ahead of time. In this article we’ll tell you exact 6.4L Powerstroke Fluid capacity and specs you need for your truck. We’ll even provide links on where to get all the oil and fluid you need.
6.4L Powerstroke Fluid & Oil Capacity
For comprehensive 6.4L Powerstroke Oil and Fluid capacity take a look at the following chart. When refilling oil or fluid on your truck, pay special attention to the dip stick or other full/max lines. You want to make sure you provide your truck with more fluid than the minimum while still being below or at the max level. Never exceed the “max” or “full” line.
| Oil/Fluid | Capacity – Quarts | Capacity – Liters |
| Engine Oil /w filter | 15 quarts | 14.2 liters |
| Auto Transmission Fluid | 17.5 quarts | 16.6 liters |
| Manual Transmission Fluid | 5.8 quarts | 5.5 liters |
| Brake Fluid | Fill to Line | Fill to line |
| Windshield Washer Fluid | 3.5 quarts | 3.3 liters |
| Fuel Coolant | 2.0 Quarts | 1.9 Liters |
| Transfer Case | 2.0 quarts | 1.9 liters |
| Coolant | 29.6 quarts | 28 liters |
| Front Differential Fluid | 2.9 quarts | 2.8 liters |
| Rear Differential Fluid | See Below | See Below |
| Sterling 10.50″ Axle | 3.5 quarts | 3.3 liters |
| Dana 80 Axle | 4.25 quarts | 4.0 liters |
| Dana S110 Axle | 7.0 quarts | 6.6 liters |
| Dana S130 Axle | 7.0 quarts | 6.6 liters |
6.4L Powerstroke Oil & Fluid Specs
| Oil/Fluid Type Needed | Part Name & Link To Buy |
| Engine Oil | 15W40 Motorcraft 15W-40 Shell Rotella 15W-40 T5 |
| Auto Transmission Fluid | Motorcraft Mercon SP |
| Manual Transmission Fluid | Motorcraft Mercon V ATF |
| Transfer Case | Motorcraft Mercon V ATF |
| Coolant | Concentrated Motorcraft Gold VC-7 Prediluted 50/50 Motorcraft VC7-DIL-B |
| Coolant Additive | Motorcraft VC-8 |
| Front Differential Fluid | SAE 80W-90 |
| Rear Differential Fluid | Varies According to Axle |
| 10.50″ Sterling Axle | SAE 75W-140 |
| Dana M80 Axle | SAE 75W-90 |
| Dana S110 Axle: | SAE 75W-140 |
| Dana S130 Axle: | SAE 75W-140 |
6.4L Powerstroke Fuel Capacity
Your 6.4L Powerstroke’s fuel capacity varies according to your bed length. The chart below gives fuel capacity for 2008-2010 Ford Superduty trucks equipped with the 6.4L Powerstroke engine.
| Type | Fuel Capacity |
| Short Bed | 30 gallons |
| Long Bed | 38 gallons |
| Cab & Chassis: Mid-Ship Tank | 19 gallons |
| Cab & Chassis: Aft Axle | 40 gallons |
6.4L Powerstroke Engine Oil Viscosity Guide
If you live in a warm environment, sticking with 15W-40 oil is the best option for your 6.4L Powerstroke. Colder environments may require substituting 10W-30 instead. Take a look at the following chart. Your 6.4L Powerstroke’s engine oil may need to be changed according to outdoor temperatures.
| Oil Viscosity | Fahrenheit | Celsius |
| 15W-40 | 20 Degrees + | -7 Degrees + |
| 10W-30 | 0-50 Degrees | Between -18 Degrees and 10 Degrees |
Other 6.4L Powerstroke Resources
ABOUT Kamil
Founder of Diesel Resource and a complete diesel head. Has a little bit of problem buying too many trucks. Learn more about him by checking out his truck.