Do Running Boards Affect Ford F-150’s Fuel Efficiency? Discover the Real Impact

Many F-150 owners wonder if adding running boards changes how efficiently their truck uses fuel. It’s a fair question since these accessories alter airflow and add weight. In most cases, running boards have only a small effect on fuel efficiency—usually less than a few percentage points—depending on their design and placement.

Still, not all running boards perform the same. Some modern options use aerodynamic shapes that help air move smoothly along the sides of the truck, while others create more drag. The difference can matter for those who drive long distances or care about squeezing every mile from a tank.

This article explores how running boards influence the Ford F-150’s fuel economy, compares setups with and without them, and shows how design choices can balance style, accessibility, and performance.

How Running Boards Impact Ford F-150 Fuel Efficiency

Running boards can slightly influence how efficiently a Ford F-150 uses fuel. Their design, placement, and materials determine how much they affect air resistance and overall vehicle weight, both of which play measurable roles in fuel economy.

Aerodynamics and Drag

Running boards alter how air flows along the sides of the truck. Fixed boards extend outward, creating a broader surface that can increase aerodynamic drag, especially at highway speeds. This added resistance forces the engine to work harder, which may reduce fuel efficiency by a small but noticeable margin.

Some newer designs use aerodynamic shaping to minimize turbulence. Rounded edges and low-profile contours help direct airflow more smoothly around the truck’s body. These designs can reduce drag compared to older, boxier styles.

At speeds below 40 mph, aerodynamic effects are minimal. However, above that range, even modest increases in drag can affect mileage. The difference might be small—often less than 1 MPG—but it becomes more apparent for drivers who spend long hours on the highway.

Weight Considerations

The weight of running boards also plays a role in fuel efficiency. Heavier materials such as steel increase the truck’s total mass, requiring more energy to accelerate and maintain speed. Lightweight materials like aluminum or reinforced plastic help reduce this effect.

For example:

Material	Approx. Added Weight (per side)	Fuel Impact
Steel	35–45 lbs	Slightly higher fuel use
Aluminum	20–30 lbs	Minimal impact
Composite	15–25 lbs	Least effect

Power-deployable running boards add extra components such as motors and brackets, increasing total weight. While the difference may seem small, over time it can translate into higher fuel consumption, especially for city driving with frequent stops and starts.

Types of Running Boards and Their Effects

Different types of running boards influence fuel efficiency in distinct ways. Fixed running boards stay extended at all times, exposing more surface area to airflow. This constant exposure can increase drag slightly, particularly at higher speeds.

Power-deployable boards, in contrast, retract when not in use. This design improves aerodynamics by keeping the truck’s sides flush during driving. Although these systems add weight due to motors and wiring, the aerodynamic benefit often offsets part of that penalty.

Nerf bars and slim-profile steps offer a middle ground. They weigh less and create less drag than full-width boards but still provide stepping support. Choosing a style that balances convenience, weight, and airflow can help maintain the F-150’s fuel efficiency without sacrificing practicality.

Comparing Fuel Efficiency: With vs. Without Running Boards

Running boards can slightly change how air moves around a Ford F-150, which may influence fuel use. The size, shape, and installation style of the boards determine whether that effect is measurable or negligible.

Real-World Test Results

Tests comparing trucks with and without running boards show small differences in fuel economy. In controlled conditions, fixed running boards sometimes create extra aerodynamic drag, reducing efficiency by about 0.5 to 1 mile per gallon at highway speeds.

However, power-deployable running boards, which retract when not in use, maintain nearly identical fuel performance to trucks without boards. This design keeps airflow smoother when the boards are tucked in.

Drivers who primarily travel at city speeds often see almost no difference. Aerodynamic drag becomes more noticeable at higher speeds, so highway driving highlights the small penalty of fixed boards more clearly.

Configuration	Highway MPG	City MPG
No Running Boards	22	18
Fixed Running Boards	21	18
Power-Deployable Boards	22	18

These figures vary with tire type, load weight, and wind conditions but reflect typical results from owner tests and independent reviews.

Manufacturer Insights

Ford and aftermarket manufacturers design running boards with aerodynamics in mind. Modern boards often feature tapered edges, flush mounting, and airflow channels to reduce drag.

Ford’s engineers note that retractable boards on recent F-150 models have minimal effect on fuel use because they fold close to the rocker panels when not deployed. This approach balances convenience with efficiency.

Some aftermarket brands advertise “aero-optimized” boards that claim to improve airflow around wheel wells. While lab simulations suggest minor gains, the real-world difference remains within the margin of error—usually less than 2% in fuel consumption.

Manufacturers recommend proper installation and alignment, as misaligned boards can disrupt airflow more than the boards themselves.

Driver Experiences

Many F-150 owners report that fuel economy stays nearly the same after adding running boards. Drivers who switched from fixed to retractable styles often mention better mileage consistency on long trips.

Some owners of older or lifted trucks notice a slight drop in highway efficiency, especially when boards extend wider than the body. Others value the added convenience and protection more than the small fuel trade-off.

In online forums, drivers frequently emphasize vehicle maintenance, tire pressure, and driving habits as far more important factors in fuel efficiency than running boards alone. For most, the difference is small enough that comfort and appearance outweigh the minor change in gas mileage.

Choosing the Right Running Boards for Better Efficiency

Selecting running boards that balance weight, strength, and aerodynamic shape helps maintain the Ford F-150’s fuel efficiency. The right materials, streamlined design, and proper installation all influence how much drag and weight the boards add to the truck.

Material Selection

The type of material affects both fuel economy and durability. Lightweight materials such as aluminum and ABS plastic reduce added mass, which can help the truck maintain its fuel efficiency. Heavier materials like steel offer strength but may slightly increase fuel consumption due to extra weight.

Owners often compare materials based on three factors:

Material	Weight	Durability	Maintenance
Aluminum	Light	High	Low
Steel	Heavy	Very High	Moderate
ABS Plastic	Very Light	Moderate	Low

Aluminum boards strike a good balance for most F-150 owners who want strength without a noticeable drop in mileage. Powder-coated finishes also resist corrosion, extending the product’s lifespan.

Design Features

Aerodynamic design plays a key role in reducing drag. Running boards with rounded edges, flush mounting, and narrow profiles allow smoother airflow along the sides of the vehicle. Flat, wide boards or those extending beyond the wheel wells can increase resistance and slightly lower fuel efficiency.

Some models include integrated end caps or tapered ends that improve airflow and prevent debris buildup. Retractable running boards are another efficient option—they deploy when needed and fold away when driving, minimizing drag at highway speeds.

Choosing boards that complement the truck’s body lines ensures both a clean look and improved aerodynamic performance.

Installation Best Practices

Proper installation ensures the boards sit securely and align with the vehicle’s contours. Misaligned or loosely fitted boards can increase drag or rattle during driving. Using manufacturer-specific brackets and mounting points helps maintain structural integrity and prevents unnecessary gaps.

Installers should check that both sides are level and that the boards don’t extend beyond the body unnecessarily. Tightening all bolts to recommended torque values prevents vibration and protects the truck’s undercarriage.

Regular inspection keeps the boards in good condition, ensuring they stay efficient and safe to use.

Other Factors That Influence Ford F-150 Fuel Economy

Fuel efficiency in a Ford F-150 depends on more than engine size or accessories. Tire condition, driving style, and how much weight the truck carries or tows all play a major role in how far each gallon of fuel goes.

Tire Type and Pressure

Tires directly affect rolling resistance, which influences how hard the engine works. All-terrain tires offer great traction but usually have deeper treads that increase drag. In contrast, highway tires are smoother and can improve mileage on paved roads.

Maintaining proper tire pressure is one of the simplest ways to preserve fuel efficiency. Underinflated tires increase contact with the road, forcing the engine to use more fuel. Overinflated tires reduce traction and can cause uneven wear.

Drivers should check tire pressure at least once a month, especially during temperature changes. Using the manufacturer’s recommended PSI helps balance performance, comfort, and efficiency. Even a few PSI below the ideal level can lower fuel economy by several percent.

Driving Habits

Driving behavior has a measurable effect on fuel consumption. Rapid acceleration, hard braking, and frequent idling all waste fuel. Smooth, gradual inputs allow the transmission and engine to operate more efficiently.

Maintaining steady speeds—especially on highways—helps the F-150’s aerodynamics work in its favor. Using cruise control when conditions allow can reduce unnecessary throttle fluctuations.

Short trips and stop‑and‑go traffic lower MPG because the engine rarely reaches optimal operating temperature. Planning routes to minimize stops or combining errands into one trip helps reduce fuel use. Consistent, moderate driving habits can improve fuel economy by up to 15%.

Payload and Towing

Extra weight requires more energy to move. Every 100 pounds of additional payload can slightly decrease fuel efficiency, especially during acceleration or hill climbs. Keeping unnecessary cargo out of the truck bed helps maintain better mileage.

When towing, aerodynamic drag increases as trailers disrupt airflow behind the truck. Using aerodynamic trailer designs, proper weight distribution, and moderate speeds can lessen this effect.

Drivers should also ensure the engine and transmission are properly maintained under towing conditions. Following manufacturer guidelines for towing capacity and using tow/haul mode when appropriate prevents strain and helps the F-150 operate efficiently under load.

Balancing Style, Accessibility, and Performance

Running boards give the Ford F-150 a polished look while making it easier to step in and out of the cab. Many owners appreciate the convenience, especially for families or drivers who frequently load gear or passengers.

However, these accessories add weight and can slightly alter the truck’s aerodynamics. Both factors may reduce fuel efficiency, though the effect is usually small—often less than a few percent depending on design and materials.

Modern designs aim to reduce drag. Power-deployable running boards extend only when needed and retract while driving, helping the truck maintain smoother airflow. Stationary boards, by contrast, remain exposed and may create more wind resistance.

Type	Key Benefit	Possible Drawback
Stationary	Always available for quick access	Slightly higher aerodynamic drag
Power-Deployable	Reduces drag when retracted	Higher cost and more parts to maintain

Material choice also matters. Aluminum boards weigh less and resist corrosion, while steel options offer more strength but add extra pounds.

For drivers who value both looks and performance, selecting a lightweight, aerodynamic running board can help balance style, accessibility, and fuel economy.