How many miles per gallon does a 1999 Ford f450 Super Duty get?
The 1999 Ford F-450 Super Duty, most commonly powered by Ford’s 7.3-liter Power Stroke diesel, typically delivers about 12–15 miles per gallon in mixed driving, with highway mileage often higher and payload or towing lowering efficiency. Real-world results vary widely based on configuration and use.
What mpg to expect in this model year
Official EPA fuel-economy ratings for heavy-duty trucks like the F-450 from this era aren’t always published or comparable to today’s standards. Owner- and tester-reported figures provide the best frame of reference, but numbers hinge on engine, drivetrain, and how the truck is used. Below are the broad ranges most often observed for the 7.3L Power Stroke-equipped F-450.
Common driving scenarios
Before the list, note that real-world figures depend on payload, towing, terrain, and maintenance. The ranges below reflect typical experiences reported by owners and testers.
- Combined driving (mixed city and highway, moderate payload): approximately 12–15 mpg.
- Highway cruising with light payload, favorable conditions: around 15–18 mpg.
- City driving or heavy payload/towing: as low as 9–12 mpg.
These figures are representative of the 1999 F-450 with the 7.3L Power Stroke and typical automatic transmission and rear-axle configurations; actual results vary with 4x4 versus 2WD, gearing, and vehicle condition.
Factors that affect mpg
Fuel economy on a heavy-duty pickup like the F-450 is influenced by multiple variables beyond engine size, including drivetrain (2WD vs. 4x4), axle ratio, transmission type, total payload, towing load, terrain, and maintenance. Regular maintenance, correct tire pressures, and using the recommended fluids can help maximize efficiency for this truck.
Summary
In summary, a 1999 Ford F-450 Super Duty with the common 7.3L Power Stroke diesel typically achieves roughly 12–15 mpg combined, with highway mileage higher under light load and towing reducing numbers to around 9–12 mpg. Because configurations and usage vary widely—especially with 4x4 options, gearing, and payload—owners should track their own fuel economy for the most accurate figure.
