July 2022

Which Diesel Engine Gets the Best Fuel Mileage?

How is Fuel Efficiency Impacted with Diesel Engines?

Fuel efficiency is calculated by dividing the number of kilometres by the number of litres of fuel used. Different factors can contribute to a better or worse fuel efficiency, more so than the engine itself. Fuel efficiency can be improved by ensuring your tires are at the correct tire pressure. If your tires are low, it can lead to lost fuel efficiency as your diesel has to work harder to move your vehicle. Another factor that impacts your vehicle’s fuel efficiency is your hauling and towing weights. If you’re carrying a lot of excess weight, your fuel economy will be reduced.

What Diesel Engine Has the Best Fuel Efficiency?

In reality, the best fuel economy can be found in Cummins, Powerstroke, and LBZ Duramax engines. Which engines have the best fuel economy depends on the year of the engine, the model of vehicle, as well as any modifications that have been made. In general, older diesel engines have the best fuel economy. This is because emissions standards for current engines often lead to a decrease in fuel efficiency. A lot of modern engines burn significantly hotter to reduce their emissions, which leads to burning more fuel. Current, modern engines tend to have less fuel efficiency.

How Does DFC Improve Engine Fuel Economy?

DFC remanufactures engines to ensure they are in great working order and have improved fuel efficiency and performance. Some of the ways we improve engine efficiency is through:

  • Total Seal Rings
  • Replacing Wearable Components
  • Properly Finishing Cylinder Walls
  • Torque Plate Honing
  • Using Quality Components

DFC offers Total Seal rings, which are piston rings that don’t have opening gaps, so they provide consistent performance that doesn’t fade. Total seal rings help with fuel economy by increasing combustion efficiency of the engine.

When we remanufacture an engine, we truly replace all wearable components. Every wearable part of the engine is completely new, and we don’t use reused or reconditioned parts even if they seem in good condition. We also properly finish the cylinder walls, perform torque plate honing, and use quality components to ensure that an engine runs as smoothly as possible, increasing fuel efficiency.

Four Tips to Improve a Diesel Engine’s Fuel Efficiency

  1. Change Your Driving Behaviour
  2. Reduce Idling
  3. Reduce Hauling Loads
  4. Increase Maintenance

One of the most important ways to improve your diesel’s fuel efficiency is driving behaviour. Driving at inconsistent speeds, constant stopping and starting, rapid acceleration, and driving too fast can greatly increase your fuel consumption. We all know that rolling coal is fun, just be prepared to fuel up more often because of it!

Another tip to improve your fuel efficiency is to reduce idling. Modern diesel engines don’t actually require extended warm up times, so even in the winter you only need to idle for up to two minutes. Extended idling drastically reduces fuel economy.

Reducing your diesel’s load is a simple way to increase your fuel efficiency. In the summertime, take out any sandbags or extra weight you have in your vehicle for icy weather. If you keep tools or other heavy haul items in your vehicle, try to take them out when you have longer drives.

A final way to improve your fuel efficiency is to perform proper maintenance on your vehicle. Ensuring that your engine has all the right fluids and oil, your brakes are in good working order, your tires are at the right pressure, and you are regularly checking your vehicle for any needed work will help ensure your engine is as efficient as possible.

Did you know that you can improve your diesel engine performance and increase fuel efficiency with specialized parts? Consider adding a Speed of Air Hyperformance Piston to your diesel engine. DFC Diesel is committed to providing our customers with the highest quality parts to bring your vehicle to the next level.

DFC Diesel provides high quality, remanufactured diesel engines. Our team of experienced mechanics work to provide the best products available. If you need a diesel engine remanufactured, or are looking to distribute DFC Diesel engines, please contact us!