7 Fuel-Saving Tips For Truck Drivers

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Professional truck drivers can only estimate so much on the expenses for running their rigs. However, regardless of the type of vehicle you drive, studies show that an estimated 30% of operating costs are allocated to fuel expenses. In the U.S. alone, the trucking industry consumes approximately 38 billion gallons of diesel fuel per year. So it makes good sense from a business standpoint (as well as for the environment) to reduce fuel consumption.

While some major factors affecting fuel consumption are outside the driver's control, there are still several steps that professional drivers can take to reduce costs. It's also helpful to understand what these effects are and use them to measure your MPG and set a benchmark.

Truckers who prioritize long-term efficiency and sustainability can also benefit from exploring practical strategies to boost trucking fuel efficiency, which provide deeper insights into reducing costs and minimizing environmental impact.

The following are seven simple ways to help reduce fuel consumption. Regardless of the vehicle you drive, the level of road congestion, or the weather conditions today, these steps can help make your ride more efficient.

1. Ensure the tires are inflated to the proper pressure.

Underinflated tires have increased rolling resistance against the road, consuming more fuel and putting more strain on the rubber in the process. According to a study by the Nordic Road Association, a 10% drop in tire pressure can increase fuel consumption by up to 1%. On the other hand, having too much air pressure will cause the center of the tire to jut out, resulting in uneven tire wear.

Maintaining the tires at optimum pressure is a fast yet effective way to make your vehicle more fuel-efficient. You may also consider installing low-rolling-resistance tires on your vehicle, which are designed to minimize energy loss during movement. These tires have been reported to improve fuel economy by up to 6% in linehaul applications. However, this comes at the cost of being more susceptible to wear, a common characteristic of this type of tire.

To keep your truck running smoothly and avoid preventable issues, pair proper tire care with regular maintenance practices that keep your truck roadworthy. A well-maintained vehicle not only conserves fuel but also stays safer and more reliable on long hauls.

2. Do not overfill your tank.

Fuel tends to expand when it's heated by exposure to the sun or when it returns from the engine or fuel system. When filled to the brim, the fuel is more likely to spill via the breather vent. Aside from costing money, fuel spills can also pose a danger to other road users, especially motorcyclists, who may slip and injure themselves.

As a general rule, fill your tank just under the neck. We also recommend checking the tank seals if they're in good condition. A cracked or damaged seal will cause fuel to evaporate as it sloshes around. If left unchecked, you can easily lose a liter a day in hot weather.

Truckers seeking fuel savings often combine this habit with eco-friendly driving techniques that reduce emissions and extend the lifespan of their trucks—helping the planet and their bottom line simultaneously.

3. Plan your speed and gear changes.

Many people aren't aware that when you drop down a gear, the engine burns more fuel. Keeping a vehicle moving, even at a walking pace, consumes considerably less fuel than accelerating from a standstill. Plan well ahead so you can get the vehicle moving and prevent unnecessary gear changes.

Take advantage of your truck's seating position and scan the road ahead for at least 10 to 12 seconds to identify any upcoming traffic, then slow down as necessary. If there are traffic lights in the distance, check if they are red or green. Adjust your speed accordingly so that you arrive at the lights while they're green and you can maintain your momentum.

4. Use your brakes wisely.

In the same manner as changing gears, using the brakes too much will also burn unnecessary fuel. The road speed lost during braking must be regained by the accelerator, consuming fuel in the process. This is even made worse if you're forced down a gear or half gear or if you're carrying a fuel load.

If you really have to brake, consider using the exhaust brake instead. When the exhaust brake is applied, fuel delivery to the combustion chamber is cut off. The vehicle is left with only its own momentum to move forward, so no fuel is spent in the process. Additionally, using the exhaust brake instead of the foot brake also eliminates the strain on the brake lining, thereby extending its lifespan.

Proper braking and gentle driving techniques also help avoid costly truck repairs that often result from excessive wear and tear caused by harsh handling.

5. Reduce aerodynamic drag.

Another major factor affecting fuel consumption is aerodynamic drag. When trucks reach a significant speed, they start to encounter air resistance, or drag, which slows the vehicle down. According to studies, nearly 50% of a truck's fuel is used for overcoming aerodynamic drag while traveling at highway speeds.

The more surfaces in your vehicle that drag is going to push against, the more effort and fuel it will take to overcome it. However, while there is only so much we can do to alter your vehicle's shape, there are ways to make it more streamlined. If your trailer is taller than your tractor, for example, consider installing a sun visor, a deep-angle bumper, or even a roof-mounted cab deflector. Side fairings can also be used to channel air down the trailer's side, reducing turbulence and making the entire vehicle more aerodynamic.

6. Avoid idling. 

An idling engine wastes fuel and money and increases emissions. A typical 420-hp engine can burn fuel at a rate of around two liters per hour when left idling, which can increase further during cold weather. If you're going to stop for more than 30 seconds, consider switching off the ignition. Turning off the engine when it's not needed or when the truck's stuck in traffic will help save fuel costs in the long run and make everyone else around your vehicle breathe easier as well.

7. Manage your load properly.

Ensure the load is positioned on your vehicle so that it doesn't overload any of the axles or create excessive drag. Try to keep the weight distributed as evenly as possible across each axle. If the load only occupies a portion of the vehicle, place it near the cab to minimize drag. Empty tipper bodies should also be covered, as this can result in up to 8% fuel savings. Check if the curtains are taut and that any rips are promptly repaired to prevent wind from coming in.

There are many other ways to help save fuel on the road, but regular general maintenance and increased awareness can go a long way in making your ride more fuel-efficient. Keeping up with essential truck lubricants that maintain peak performance also ensures your engine and transmission operate smoothly, reducing friction and improving fuel economy.

And if you need new parts for your truck, be sure to check out FindiParts. We offer great deals on replacement parts and accessories to make your vehicle run smoothly and save money in the long run.