How many MPG does a 6.7 power stroke high output get?
In general, the 6.7L Power Stroke High Output (HO) delivers roughly 15–18 miles per gallon combined, with highway efficiency typically in the high teens to low twenties when not towing. Real-world numbers vary widely depending on model year, drivetrain, payload, and whether you’re towing. When a heavy load or trailer is involved, mpg tends to drop significantly.
What is the 6.7L Power Stroke High Output?
The 6.7-liter Power Stroke is Ford’s turbo-diesel V8 used in the Super Duty lineup. The High Output (HO) version is the more powerful calibration designed for higher performance and heavier-duty use. Horsepower and torque figures vary by model year, but HO variants are tuned to provide more output than the base 6.7L engines. This increased power comes with trade-offs in fuel economy, especially under load.
Notes on power and tuning
HO configurations have evolved across generations; exact output depends on year, transmission, and drivetrain. Always verify the specifications for your specific truck on the window sticker or Ford’s documentation.
MPG expectations across typical use cases
What drivers see in daily use depends on whether the truck is empty, loaded, or towing. The ranges below reflect common real-world experience for recent model years.
- Unloaded highway driving (steady speeds, light load): roughly 18–22 miles per gallon.
- City or mixed driving (urban use, stops-and-starts): roughly 14–17 miles per gallon.
- Heavy towing or carrying large payload: roughly 8–12 miles per gallon.
As always, individual results vary with tire pressure, drivetrain (2WD vs. 4WD), axle ratio, altitude, and maintenance.
Factors that influence MPG
Several elements can push the numbers up or down. Understanding these factors helps you set expectations and plan fuel economy accordingly.
- Drivetrain configuration: 4x4 models typically show lower mpg than 2WD versions.
- Aerodynamics and load: hauling heavy trailers or payloads reduces efficiency significantly.
- Tire size and pressure: underinflated tires hurt efficiency; oversized tires can reduce mpg further.
- Engine and maintenance: cold starts and poor maintenance hurt mpg; regular diesel maintenance helps.
- Terrain and altitude: hilly or mountainous routes reduce efficiency.
- Driving habits: smooth acceleration, steady speeds, and minimized idling improve mpg.
Real-world mpg is often below EPA estimates when towing or carrying payload, and can be higher on long, flat highway miles without a load.
Tips to maximize mpg
Drivers can adopt several practices to squeeze more fuel economy from a 6.7 HO, especially when not towing.
- Keep tires inflated to the recommended pressure and use appropriate tires for efficiency.
- Use cruise control on highways to maintain steady speeds and avoid aggressive acceleration.
- Perform regular maintenance: oil changes, air and fuel filters, and fuel-injection system upkeep help efficiency.
- Lighten payload and remove unnecessary accessories when highway driving.
- Plan routes to minimize idling and maximize highway miles between stops.
With prudent driving and maintenance, you can push mpg toward the higher end of the ranges described above.
Summary
The 6.7L Power Stroke High Output is Ford’s higher-performance diesel option for Super Duty trucks. Its fuel economy varies by year, configuration, and use case, but most drivers report about 15–18 mpg combined in typical conditions, with better highway efficiency when unloaded and substantial drops under heavy load or towing. Always check your exact model year’s EPA window sticker and track your own driving to gauge real-world mpg.
Bottom line
For planning purposes, expect mid-teens to low twenties mpg on highway runs without heavy towing, and significantly less when pulling trailers or carrying heavy payloads. Your exact numbers will depend on the truck’s specs and how you drive.
