21 MPG combined won’t win any efficiency awards, but it’s a respectable number for the 2015 Ford F-150 SuperCrew with the 5.5ft bed. More crucially, it’s a figure that reflects the compromises many truck buyers willingly make: capability and space over Prius-like fuel sipping. This configuration, powered by the proven 3.5L EcoBoost V6, appeals to those who need a truck that can haul lumber, tow a boat, and comfortably transport a family of five, all packaged in a maneuverable and practical size.

City and highway performance

The EPA estimates for the 2015 F-150 SuperCrew 5.5ft with the 3.5L EcoBoost and 6-speed automatic transmission break down to 18 MPG in the city and 25 MPG on the highway. The city figure is where the F-150’s weight and inherent truck characteristics become most apparent. Stop-and-go traffic chews away at fuel efficiency, a reality every pickup owner understands. The highway MPG, however, shows the potential of the EcoBoost engine. Its ability to deliver strong torque at lower RPMs allows for relaxed cruising, contributing to a more fuel-efficient experience on longer journeys.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2015 Ford F-150 SuperCrew 5.5ft (3.5L EcoBoost) to be precisely $2,500. This figure is calculated based on driving 15,000 miles per year, using the national average fuel prices at the time of calculation. It’s a useful benchmark, but individual costs will vary based on driving habits, local fuel prices, and the actual miles driven each year. If you spend a significant portion of your time towing or hauling heavy loads, your actual fuel costs will likely exceed this estimate.

Real-world expectations

While the EPA provides a standardized benchmark, real-world fuel economy often deviates. Many owners report figures that are close to the EPA estimates, especially those who drive efficiently. However, aggressive driving, frequent towing, and aftermarket modifications can significantly impact fuel consumption. Payload also matters; regularly hauling heavy loads in the bed will certainly drag down MPG. Expect to see figures ranging from the high teens to low twenties in mixed driving conditions, depending on these factors. Remember to consult resources like FuelEconomyHub to find F 150 MPG across all years.

How it compares

Compared to its rivals, the 2015 F-150 SuperCrew 5.5ft with the 3.5L EcoBoost stacks up reasonably well. The Chevrolet Silverado 1500 and GMC Sierra 1500, equipped with their 5.3L V8 engines, typically deliver combined MPGs in the 19-20 range, slightly lower than the F-150. The Ram 1500 with the 5.7L Hemi V8 also falls in a similar range. The Toyota Tundra, known for its reliability but not its fuel efficiency, generally lags behind, reporting figures closer to 17-18 MPG combined with its 5.7L V8. Ford’s own 2.7L EcoBoost V6, available in the F-150, does offer slightly better fuel economy (around 22 MPG combined), but sacrifices some towing capacity. Buyers often choose the 3.5L EcoBoost because it is a smart balance of torque and relative efficiency. It’s important to explore all Ford fuel economy data to understand how various configurations perform.

Tips to maximize efficiency

The EcoBoost engine benefits significantly from a light foot. Avoid aggressive acceleration and maintain a steady speed whenever possible. The turbos can kick in aggressively under heavy throttle, dramatically increasing fuel consumption. Anticipate traffic flow and avoid unnecessary braking to conserve momentum and reduce fuel waste.

Regular maintenance is also critical. Ensure your tires are properly inflated to the pressure listed on the door jamb. Underinflated tires increase rolling resistance and reduce fuel economy. Change your engine oil and air filter according to the manufacturer’s recommended intervals. A clean engine operates more efficiently.

Reduce unnecessary weight in the bed of the truck. Hauling around extra equipment or tools that aren’t needed will add to fuel consumption. Consider removing items when they are not in use and storing them elsewhere. Even a few hundred pounds can make a difference over time.

When towing, select the appropriate tow/haul mode. This mode optimizes the transmission’s shift points to improve performance and reduce strain on the engine. It can also help maintain a more consistent speed, which is essential for fuel efficiency when towing heavy loads. Wind resistance greatly reduces fuel economy when towing, so avoid driving faster than necessary.