
Diesel-powered vehicles are becoming increasingly popular due to their ability to reduce fuel usage and emissions. Diesel engines are more efficient than gas engines, offering greater fuel economy and lower fuel costs. Diesel engines also have better torque efficiency, requiring less input to start the vehicle and less fuel. Diesel fuel is also safer than gasoline as it is not as prone to ignition. However, it is important to keep an eye on the fuel gauge to ensure you do not run out of fuel, as diesel engines operate under extremely high fuel pressure. Knowing how to refuel a diesel pickup truck is crucial, especially since diesel fuel types vary. Additionally, regular maintenance and good driving habits can further improve fuel mileage.
Characteristics and their values regarding diesel pickup trucks
| Characteristics | Values |
|---|---|
| Fuel efficiency | 29% more efficient on highways and 24% more efficient in cities compared to gas engines |
| Fuel cost | Lower overall fuel costs |
| Fuel type | Ultra Low Sulfur Diesel |
| Fuel filter | Needs to be replaced more often than gasoline filters |
| Fuel mileage | Improved by accessories like tonneau covers |
| Fuel mileage | Reduced by underinflated or misaligned tires |
| Fuel mileage | Reduced by rapid acceleration and sudden stops |
| Fuel system | Requires physical input to get the engine re-fired in older trucks |
| Fuel system | Newer trucks are more self-serving when it comes to the priming process |
| Fuel level | Gauge is the best way to know your approximate mileage range |
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What You'll Learn
- Confirm the type of fuel your pickup requires
- Regularly check tyre pressure and look for signs of abnormal wear
- Improve fuel economy by reducing drag with aerodynamic accessories
- Keep up with manufacturer recommendations, like oil changes
- If your diesel pickup runs out of fuel, do not try to start the engine

Confirm the type of fuel your pickup requires
Confirming the type of fuel your pickup truck needs is an important step before refuelling. This is because misfuelling can cause costly damage to your vehicle.
If you are renting a truck, the rental company will usually label their trucks in various places to ensure you make the right choice. For example, Penske Truck Rental places labels near the fuel tank, on the sun visor inside the cab, and on the driver's side door.
If you are unsure, it is best to consult the truck's manual or contact the manufacturer. You can also ask the rental company for assistance.
It is also important to note that the procedure for refuelling a diesel truck may differ from that of a gas-powered vehicle. Therefore, it is crucial to familiarise yourself with the correct process to avoid any potential issues.
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Regularly check tyre pressure and look for signs of abnormal wear
To fuel a diesel pickup, it is essential to regularly check your tyre pressure and look for signs of abnormal wear. This is because underinflated or misaligned tyres can decrease fuel economy, leading to higher costs at the pump. Checking your tyre pressure can be done in a few simple steps. Firstly, if your front and rear tyres require different pressure levels, write down the correct PSI for each to avoid confusion. Then, remove the valve cap and place a pressure gauge on the valve stem, pressing down until you get a reading. You can use a standard or digital gauge, but ensure it is accurate. Write down the reading and repeat for all tyres, refilling any with low pressure using an air compressor.
It is recommended to check your tyre pressure monthly and after significant weather changes, as temperature variations can affect tyre pressure. You can also have a technician check your tyre pressure when you get an oil change. When refilling your tyres, be careful not to overinflate them, as this can lead to premature wear and decreased traction and impact absorption.
While checking your tyre pressure, it is also important to inspect your tyres for any signs of abnormal or uneven wear. This can include cracks, bulges, or wear on the inside or outside of the tyre. Abnormal wear could be a sign of underinflation, overinflation, or issues with your trailer or bearings, which may require immediate inspection by a qualified technician.
By regularly checking your tyre pressure and looking for signs of abnormal wear, you can help ensure your diesel pickup runs smoothly and efficiently, improving fuel mileage and driving safety.
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Improve fuel economy by reducing drag with aerodynamic accessories
The height, shape, and overall design of a pickup truck create more drag than smaller, more streamlined cars. Aerodynamic accessories can improve fuel economy by reducing drag, which is the force that opposes the truck's motion, making the engine work harder to maintain speed and increasing fuel consumption.
One way to reduce drag is to install a tonneau cover, which can improve the aerodynamics of a pickup truck by up to 7%. Tonneau covers are a great option as they also protect items stored in the truck bed. Another option is to add a rear spoiler, which redirects airflow and prevents air from rushing underneath the truck and creating drag. Low-profile spoilers mounted under the front bumper can help achieve this. Side skirts are another accessory that can reduce drag. They are installed along the truck's sides, between the front and rear wheels, and help smooth out the airflow. Additionally, upgrading to low-profile wheels with aerodynamic designs and fuel-efficient tires can reduce resistance and enhance fuel efficiency.
It is important to consider the cost versus savings when adding aerodynamic accessories, as the upgrades may be expensive and the return on investment may vary depending on driving conditions and usage.
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Keep up with manufacturer recommendations, like oil changes
Keeping up with the manufacturer's recommendations for your diesel pickup, such as oil changes, is essential for optimal performance and longevity. While the frequency of oil changes can vary, there are general guidelines and factors to consider to ensure you're maintaining your vehicle properly.
Firstly, it's important to consult your vehicle's owner's manual or manufacturer's recommendations for specific instructions on oil change intervals. These recommendations are typically provided in terms of mileage or time, such as every 3,000 to 10,000 miles or every three months. Light-use trucks can generally go longer without an oil change, up to 10,000 miles or even a year. On the other hand, diesel trucks that idle frequently, log fewer highway miles, or tow heavy loads may require more frequent oil changes, as often as every three months or every 3,000 miles.
Secondly, consider the type of oil used. Higher-quality motor oils, such as synthetic blends or full synthetic oil, can extend the time between oil changes. Synthetic blends may offer a range of 7,500 to 10,000 miles, while full synthetic oil can provide up to 10,000 to 15,000 miles of use. Standard oil will typically give you 5,000 to 7,500 miles before needing a change.
Additionally, environmental factors play a role in oil change frequency. Temperature extremes, both hot and cold, can affect the effective lifespan of your engine oil. Very cold temperatures reduce oil viscosity, impacting its flow through the engine, while extreme heat can make the oil more watery and less effective as a lubricant. As a result, you may need to change your oil more frequently if operating your diesel pickup in extreme weather conditions.
Other factors to consider include the age of your vehicle and any modifications made to the engine. Older engines tend to require more oil and may need more frequent oil changes to function properly. Modified engines, particularly those with aftermarket upgrades, will also typically require oil changes at shorter intervals.
Finally, it's essential to practice preventative maintenance and be mindful of potential issues. Regularly check the colour of your oil, as darker oil may indicate a need for a change. Keep an eye out for any signs of leaks or unusual engine behaviour, as even minor mistakes during an oil change can lead to serious problems. Consider seeking expert advice or utilising services like Preventative Maintenance Fluid Analysis to ensure your diesel pickup's engine remains in optimal condition.
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If your diesel pickup runs out of fuel, do not try to start the engine
If you try to start the engine without fuel, you may need to bleed the fuel system, which can be a costly and time-consuming process. This involves removing filters, cleaning and blowing out all the fuel lines, and potentially replacing the injectors and pump.
Instead, if your diesel pickup runs out of fuel, the first step is to add more fuel to the tank. If you have extra diesel nearby, this step should be simple. However, if you do not have any diesel on hand, you may need to call for a service to bring you some.
Once you have added fuel, you will need to bleed the lines and injectors. This process can be messy and typically requires a wrench, a bottle or receptacle to collect the diesel, and some rags for cleanup. After bleeding the lines and injectors, you can attempt to start the engine.
To avoid running out of fuel in your diesel pickup, it is important to keep an eye on the fuel gauge and ensure that you always have enough fuel in the tank. This will help prevent unnecessary stress on the engine and potential maintenance issues.
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Frequently asked questions
Always keep an eye on the fuel gauge and be mindful of how much fuel is in the tank.
It's important to confirm the type of fuel your pickup needs before refueling. Look for a sticker near the fuel tank and check the sun visor inside the cab for fueling information.
Diesel engines are more fuel-efficient than gas engines. To save on fuel costs, you can also improve your driving habits, such as avoiding rapid acceleration and sudden stops, using cruise control, and reducing idle time. Additionally, regularly replacing the fuel filter and checking tire pressure can help improve fuel efficiency.










































