Diesel has long been the go-to for medium-duty service trucks. But, with more and more manufacturers introducing gas-powered models, field workers have a wider selection than ever before to choose from. When you’re on the job, you want the right truck to get it done. So between gas and diesel service trucks, which one is right for you? The short answer—it depends.
Let’s look at gas vs. diesel service trucks and find out what they both bring to the worksite.
Advantages of Gas Service Truck
- Accelerations and Horsepower: Gas-powered vehicles generally offer more oomph off the line, with more horsepower and acceleration than their torquey diesel-powered cousins. When you need quick acceleration and passing capabilities, opt for a gas-powered service truck.
- Convenience: Gasoline is sold at nearly every fueling station, while diesel may not always be available. If you find yourself in remote areas with little access to diesel fuel, you may have more luck with a gas service truck.
- Lower Maintenance Costs: When you need repairs, autoshops tend to have parts for gas service trucks readily available. The result is quicker, easier, and more affordable maintenance and repairs.
- Lower Initial Cost: Gas engines typically have a significantly lower purchase price than diesel engines. This can translate to substantial savings upfront, especially for those purchasing fleets.
Advantages of Diesel Service Trucks
- Higher Torque and Towing Capacity: Diesel engines, that torquey cousin we mentioned, excel in heavy-duty towing and hauling. This makes them ideal for service trucks that frequently handle demanding loads.
- Better Fuel Economy (especially with heavy loads): While diesel fuel may cost more per gallon, diesel engines often offer better fuel economy, especially when towing or hauling heavy loads. This leads to long-term cost savings for high-mileage applications.
- Longer Lifespan: Diesel service trucks are typically built with heavier-duty components and simpler designs—contributing to a longer and more reliable lifespan. They can withstand higher compression ratios and more demanding work cycles.
- Exhaust Braking: To enhance their towing prowess, diesel service trucks often feature exhaust brakes, which provide additional stopping power when towing heavy loads. This reduces the wear on the truck’s regular brakes.
Gas vs. Diesel Trucks: A Quick Glance
| Feature | Gas Service Trucks | Diesel Service Trucks |
| Upfront Cost | Lower initial purchase price; better for smaller budgets. | Higher initial cost; premium engine price tag. |
| Torque & Towing | Sufficient for light to medium towing/hauling. | Exceptional torque; superior for heavy-duty towing. |
| Fuel Efficiency | Lower efficiency; higher consumption under load. | Higher efficiency; better MPG, especially when loaded. |
| Maintenance | Generally cheaper and easier; parts are widely available. | Specialized maintenance; higher costs for filters and fluids. |
| Lifespan | Standard engine life; tends to depreciate faster. | Built for longevity; often lasts 400,000+ km with care. |
| Fuel Availability | Available at almost every station; better for remote areas. | Sometimes limited in remote regions; requires DEF (Diesel Exhaust Fluid). |
| Cold Weather | Heats up quickly; easier to start in extreme cold. | May require block heaters/glow plugs; fuel can “gel” if not treated. |
| Best Use Case | Daily driving, light-duty work, and frequent short trips. | High-mileage highway driving and heavy-duty field work. |
Things to Consider Before You Decide
Before you commit either way, there are considerations to take into account:
- Application: Consider what you’re using your service truck for, and typical conditions it’ll face. If heavy towing and hauling are a priority, opt for a diesel service truck. For lighter-duty applications, consider a gas service truck.
- Cost: It’s more than just the sticker price. Consider maintenance, fuel, and any other long-term operating costs.
- Fuel Availability: Assess the accessibility of diesel fuel in your operating area. If you tend to be in remote areas, you may want to consider a gas-powered vehicle to avoid stressing about finding the next pump.
- Maintenance: Factor in the potential for higher maintenance costs with diesel engines, but remember to weigh this against the long-term durability and lifespan to determine which will be a priority for your service truck.
Ultimately, when you’re deciding between gas and diesel service trucks, the choice is up to you.
Service Trucks That Work as Hard as You Do
Whether you choose a gas or diesel service truck, the most important part is finding the one that works for you in the long term. When you’re considering a gas or diesel service truck, let the experts at Trucks For Less in Acheson help you decide. We’ll find the right truck to suit your needs, and financing options to meet your budget.
For all your gas and diesel service truck needs, contact the experts at Trucks For Less.
Frequently Asked Questions (FAQs)
1. Which truck is better for Alberta’s extreme winters?
Gas engines generally have an advantage in extreme cold because they warm up faster and are easier to start without extra equipment. That said, modern diesel trucks are equipped with advanced glow plugs and block heaters that make them very reliable in Alberta winters, provided you use winter-grade diesel or fuel additives to prevent gelling.
2. Does a diesel engine really last longer than a gas engine?
Yes. Diesel engines are built with heavier-duty components to handle higher compression ratios. While a gas engine might start showing significant wear after 250,000 km, many diesel engines are just getting started at that mileage and can often reach 400,000 km to 500,000 km or more with proper maintenance.
3. Is diesel fuel more expensive than gasoline?
The price per litre varies, and diesel is often slightly more expensive than regular gasoline. However, because diesel engines are roughly 20% to 30% more fuel-efficient, the cost per kilometre is often lower for diesel, especially if you are hauling heavy equipment or driving long distances.
4. What is DEF, and do I need it for a diesel service truck?
DEF (Diesel Exhaust Fluid) is a non-hazardous liquid used in modern diesel engines to reduce harmful emissions. Most diesel trucks manufactured after 2010 require it. While it is an extra step during maintenance, it allows the truck to run cleaner and meet environmental regulations.
5. Which has a better resale value?
Diesel trucks typically hold their value much better than gas trucks. Because of their reputation for durability and long-term performance, buyers are often willing to pay a premium for a used diesel service truck even if it has higher mileage.
6. Can I use a gas truck for heavy towing?
You can, but it won’t be as efficient. Gas engines have to work much harder (higher RPMs) to pull heavy loads, which leads to significantly higher fuel consumption and more wear on the engine. If your service truck is constantly loaded with heavy tools, a crane, or a welder, diesel is the more capable choice.







