With 22 MPG combined, the 2018 Ford F150 in this specific 4WD, base payload, LT tire configuration with the 3.0L diesel, won’t win any hypermiling contests. But for the rancher pulling a small horse trailer, the contractor hauling tools to a job site, or the weekend warrior towing a boat to the lake, it represents a reasonable compromise between capability and operating cost. These buyers aren’t primarily focused on saving every possible penny at the pump; they need a truck that works hard, and they’re willing to accept a certain level of fuel consumption. This diesel F150 makes a strong case for efficiency that doesn’t compromise utility. You can explore further all Ford fuel economy data here to see how other models fare.

City and highway performance

The EPA estimates are broken down into 20 MPG in the city and 25 MPG on the highway. The city figure reflects the stop-and-go driving conditions that can dramatically impact fuel efficiency, especially in a heavier vehicle like the F150. The diesel engine performs admirably here, using its torque to get the truck moving without excessive throttle input. On the open road, the 25 MPG highway rating showcases the benefits of the diesel’s efficiency at steady speeds, making long hauls more economical. The diesel’s relatively low-revving nature also contributes to a quieter and more relaxed driving experience on the highway.

Annual fuel cost

The EPA estimates the annual fuel cost for this specific 2018 Ford F150 configuration at $2,550 per year. This figure is calculated based on 15,000 miles of driving per year, with 55% of those miles driven in the city and 45% on the highway. It also assumes the usage of fuel that is priced at the national average at the time of calculation. The real cost can fluctuate depending on driving habits and the cost of fuel in your specific area, but the $2,550 figure provides a useful benchmark for comparison. Diesel fuel prices can be more volatile than gasoline, potentially impacting the overall cost of ownership.

Real-world expectations

While the EPA estimates provide a standardized baseline, real-world MPG can vary substantially based on a number of factors. Towing, hauling heavy loads, aggressive acceleration, and driving in extreme weather conditions all negatively impact fuel consumption. Conversely, gentle acceleration, consistent highway speeds, and proper tire inflation can help you achieve, or even slightly exceed, the EPA estimates. Owners report that the diesel F150 is remarkably consistent in its fuel economy, generally delivering within a MPG or two of the EPA estimates under normal driving conditions. However, those who frequently tow heavy loads will likely see a more significant drop in MPG.

How it compares

The 2018 Ram 1500 EcoDiesel, a direct competitor, achieved around 21 MPG combined in similar configurations. While seemingly a small difference compared to the F150’s 22, it adds up over time. The Chevrolet Silverado 1500 with the Duramax diesel often mirrored the Ram’s numbers, also sitting around 21 MPG combined. Buyers considering these trucks will weigh not only fuel economy but also towing capacity, payload, and overall reliability. Specifically when comparing the diesel trucks, fuel economy often isn’t the deciding factor. You can view the F150 MPG across all years for another point of comparison.

Tips to maximize efficiency

One of the best ways to improve efficiency in this diesel F150 is to resist the urge to bury the throttle every time the light turns green. The engine’s strong low-end torque provides ample power for daily driving, so avoid unnecessary acceleration. Smooth, consistent acceleration will yield improvements in fuel economy over time.

Properly inflated tires are important for maximizing fuel efficiency. Check your tire pressure regularly and inflate them to the manufacturer’s recommended PSI, which can be found on the sticker located on the driver’s side door jamb. Low tire pressure increases rolling resistance, which forces the engine to work harder and consume more fuel.

Avoid idling for extended periods whenever possible. Diesel engines, while generally more efficient than gasoline engines, still consume fuel while idling. If you anticipate being stopped for more than a minute or two, it’s generally more fuel-efficient to turn off the engine and restart it when you’re ready to go.

When towing, distribute the weight evenly in the trailer. Improper weight distribution can lead to increased drag and instability, both of which negatively impact fuel economy. A well-balanced trailer reduces strain on the truck and allows it to pull more efficiently.