Diesel vs. Gas Trucks: Which Engine Type is Better for Your Fleet?

Diesel	Category	Gas
Yes	Uses Combustion	Yes
Higher	Fuel-Efficiency	Lower
Higher	Repair Costs	Lower
Lower	Acceleration	Higher
Higher	Torque Output	Lower
Not Needed	Spark Plugs	Needed

 

Power Engines

When Are Diesel Trucks the Better Pick?

 

When evaluating diesel vs. gas truck pros and cons, many drivers look for maximum power and long-term value. Here is why diesel trucks stand out for work trucks and commercial applications:

• Torque Output: Diesel trucks are renowned for their sky-high torque outputs, and that means they’re excellent choices for drivers who demand heavy-duty capabilities. The benefit of additional torque is especially clear when you compare diesel vs. gas trucks on towing performance, since diesel trucks can generally pull much heavier loads.
• Fuel Economy: Diesel engines tend to be more expensive than gas engines, but they offer higher fuel economy ratings. This means you can travel freely around Milwaukee without always having to stick close to a pump. Commercial truck telematics can help your fleet move even more efficiently.
• Reliability: Compared to gas engines, diesel engines use a simpler design. Because they are heavier and they tend to have fewer moving parts, chances are you’ll run into fewer problems throughout the engine’s lifespan. Diesel engines may also last much longer than gas engines when all is said and done.

When is a Gas Truck the Better Pick? (Gas Trucks Pros & Limits)

 

In any direct gas truck comparison, there are distinct advantages (pros) and trade-offs (cons) to consider when choosing a gasoline powertrain:

• Horsepower & Acceleration: When it comes to horsepower and acceleration, gas engines have the upper hand. A diesel engine with lots of torque can help you get up to speed when you’re carrying a heavy load, but gas trucks are a little better at passing other vehicles on the highway.
• Payload Limits: All other things being equal, a lighter truck can handle a bigger payload than a heavier one. After all, your axles and your tires can only handle a certain amount of weight. Since diesel engines are heavier than gas engines, a truck with a gas engine can usually handle more weight in its cargo bed.
• Easier Fuel Fill-Ups: You can find a gas station easily, no matter where you go. It can be more of a challenge to find a gas station that also sells diesel fuel.
• Easier Maintenance: On the whole, service technicians are more familiar with gas vs. diesel engines. Whether you run gas or diesel, Lynch Truck Center's commercial truck repair team is factory-trained on both. This translates to lower engine repair costs, parts replacements, and tune-ups. However, an aging gas engine can accumulate more problems than its heavier diesel counterpart.

Diesel vs. Gas Trucks: A Technical Comparison of Combustion, Compression & Temperature

 

We’ve covered some of the basic pros and cons above, but what about nitty gritty differences like internal combustion, compression, and temperature? Here is a deeper technical comparison:

• Combustion: In this regard, is diesel better than gas? Not necessarily, as both gas- and diesel-powered engines utilize combustion technology.
• Compression: On average, diesel engines have a typical compression ratio of 15:1 and 25:1. This ratio is higher than the average ratio for gas engines, which is 10:1. Diesel engines can self-ignite without the use of spark plugs.
• Temperature: There’s a small difference between the maximum cold and hot temperatures in gas and diesel engines’ cycles. This small difference translates to greater fuel-efficiency from a diesel engine.

Whether you’re comparing gas vs. diesel for heavy towing in a Ford F-250, a GMC Sierra HD, a Chevy Silverado HD, or a RAM 2500, you’ll be considering many of the same performance factors. However, you probably already know that there can be vast differences between the gas and diesel engines offered by each Ford and GM lineup. Comparing diesel engines from brand to brand is just as important as comparing diesel trucks vs. gas vehicles.

Search Vehicles in Our New & Used Commercial Truck Inventory at Lynch Truck Center!

So, should you choose a diesel or gas truck? Again, it depends on what you need from a truck’s engine type, be it high torque output, heavy towing capacity, good fuel efficiency, or fuel convenience. If you have questions about diesel engines maintenance or want to search vehicles in our new vehicle inventory, contact us at Lynch Truck Center. While you’re at it, learn a little more about your Ford commercial options by comparing the Ford F-450 vs. F-550. You’re also welcome to visit us near Milwaukee to explore our full selection of work trucks and transport vehicles or speak with our knowledgeable staff in person.

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