How many miles per gallon does a 2020 f550 6.7 get?
The 2020 Ford F-550 with the 6.7-liter Power Stroke diesel typically achieves around 11–14 miles per gallon combined, depending on configuration, payload, and use. Fuel economy for this heavy-duty truck varies widely with towing, load, and driving conditions, so real-world numbers can shift outside this range.
Understanding the fuel economy you can expect
Because the F-550 is primarily sold as a chassis cab or specialized service vehicle, official EPA ratings aren’t published for every possible build. What follows are typical ranges reported by owners and observed in tests, illustrating how configuration and usage affect mpg.
- City driving: roughly 9–12 mpg
- Highway cruising (empty or light payload): roughly 14–18 mpg
- Combined (mixed use with some payload): roughly 11–14 mpg
These ranges can shift based on how the truck is equipped, how much it is loaded, and how it is driven. Heavier payloads and towing demands tend to push mpg down, while steady highway speeds can push it up.
Key factors that influence fuel economy
The following elements usually determine where a given F-550 falls within the mpg spectrum. Each factor can swing the numbers by a noticeable margin.
- Payload and towing: More weight means more engine effort and lower mpg.
- Drivetrain and wheels: 4x4 configurations and dual rear wheels (DRW) generally reduce mpg compared with 2WD or SRW setups.
- Driving conditions and speed: Stop-and-go city driving lowers mpg relative to steady, efficient highway speeds.
- Tire maintenance and aerodynamics: Underinflated tires and poor aerodynamics reduce efficiency.
- Maintenance and fuel quality: Regular service, clean filters, and proper fuel can help maintain expected performance.
In practice, the real-world mileage of a 2020 F-550 will reflect how it is used day to day. For fleet managers and owners, tracking fuel economy on specific work routes provides the most accurate picture.
Maximizing efficiency for a 2020 F-550
While the F-550 is designed for capability rather than economy, owners can still optimize fuel use with careful planning and maintenance.
- Limit payload and towing to what is strictly necessary for a given job.
- Maintain proper tire inflation and alignment to reduce rolling resistance.
- Follow scheduled maintenance for the diesel engine, including oil and fuel filter changes.
- Drive at steady speeds on highways and avoid aggressive acceleration and excessive idling.
- Choose configurations with lower drivetrain drag when possible (for example, lighter-duty trims or configurations optimized for efficiency).
Keep in mind that the F-550’s strength lies in payload and towing capacity, so fuel economy is a secondary consideration by design.
Summary
For a 2020 Ford F-550 with the 6.7L Power Stroke diesel, expect roughly 11–14 mpg combined in typical use, with broader ranges possible depending on payload, towing, drivetrain configuration, and driving conditions. Real-world results vary, so consult your specific build and monitor on-road mileage to get an accurate sense of fuel economy. In practice, these vehicles are optimized for work capability rather than maximum efficiency.
