What is the gas mileage on a Ford 550?
The Ford F-550’s fuel economy depends heavily on the chosen powertrain and how the truck is used. In general, gasoline-powered F-550s average roughly 8–12 mpg combined, while diesel versions typically run in the low-to-mid teens combined. Real-world results vary widely with payload, towing, terrain, and driving style.
To understand the numbers, it helps to know the available engines, how payload and towing influence efficiency, and what practical steps can affect fuel economy. The sections below break down typical figures, influential factors, and tips to squeeze more miles out of a tank when you’re hauling heavy loads.
Engine options and fuel economy
Different powertrains offer contrasting mpg profiles. Here are the common options and their typical ranges.
Gasoline engines
- 7.3L V8 gasoline (Godzilla): Real-world combined mileage is typically around 9–12 mpg, with highway efficiency higher when not fully loaded or towing.
- 6.8L V10 gasoline (older option): Generally falls in the 8–12 mpg range depending on configuration and payload.
Conclusion: Gasoline F-550s tend to be less fuel-efficient than diesels, especially under load, but they can be cheaper to operate in certain settings and offer straightforward maintenance.
Diesel engine
- 6.7L Power Stroke turbo-diesel: Commonly reported in the low-to-mid teens mpg combined, with highway figures often higher when not towing or heavily loaded.
Conclusion: The diesel version usually delivers better efficiency under load and on highway driving, but with higher upfront cost and different maintenance considerations.
What else shapes the numbers in the real world
Engine choice is only part of the story. Several real-world factors have a big impact on the mpg you actually see.
- Payload and towing: Heavier work payloads and trailers dramatically reduce mpg compared with an empty truck.
- Terrain and driving style: Hills, frequent stops, and stop-and-go city driving lower efficiency; steady highway speeds help.
- Aerodynamics and accessories: Roof racks, bull bars, or other drag-causing gear can reduce fuel economy; smoother aerodynamics help slightly.
- Tire size and maintenance: Proper tire pressure and appropriate tire type improve rolling resistance and economy.
- Maintenance and condition: Regular service, clean air filters, and properly functioning injectors and exhaust systems matter for mpg.
Conclusion: Your actual mpg is the product of engine choice, payload, driving conditions, and how well you maintain the truck. Plan accordingly and don’t rely on a single number.
Tips to maximize fuel economy on the F-550
Small changes can yield meaningful gains when you’re deploying a heavy-duty work truck on long days or over challenging routes.
- Maintain correct tire pressure: Keep tires inflated to the manufacturer’s recommended levels to minimize rolling resistance.
- Plan routes and reduce idling: Where possible, minimize idle time and choose routes with steadier speeds.
- Lighten loads and remove drag: Remove unnecessary weight and avoid roof racks or other drag-inducing gear when not needed.
- Practice smooth driving: Use gentle acceleration and steady speeds; cruise control can help on highways.
- Keep up with maintenance: Regular oil changes, air filter replacements, and injector/engine checks ensure the engine isn’t fighting avoidable inefficiencies.
Conclusion: Implementing these habits can help you pull more miles from every gallon, even with a heavy-duty chassis cab like the F-550.
Summary
In brief, the Ford F-550’s gas mileage varies by engine and application: gasoline versions typically yield about 8–12 mpg combined, while diesel models often land in the low-to-mid teens combined. The biggest driver is how you use the truck—payload, towing, and driving conditions matter more than the base engine alone. For precise numbers, check the specific window sticker for your configuration or consult a Ford dealer, keeping in mind that real-world results may differ from published estimates.
