3L Duramax Diesel Engine vs. 5.3L V8 Engine

2021 Chevrolet Silverado HD with farm equipment
3L Duramax Diesel Engine

vs.

5.3L V8 Engine
Internal Combustion

Engine Type

Internal Combustion
Advantage

Efficiency

Disadvantage
Disadvantage

Maintenance Costs

Advantage
Disadvantage

Acceleration

Advantage
Advantage

Torque / Towing Power

Disadvantage
No

Requires Spark Plugs

Yes

So, you’re buying a new Chevy Silverado and you have some room in your budget for an engine upgrade. For the same cost, you can take your pick between a 5.3L V8 gasoline engine or a 3.0L Duramax diesel engine. What’s the difference between the two, and which one can best meet your needs on and off the job on Pearson?

You may already know that diesel engines require less maintenance and deliver impressive fuel economy on long trips. On the other hand, gasoline engines like the 5.3L V8 offer class-leading towing capability and a scorching 0-60 time to boot. Read on to explore some key diesel vs. gas truck pros and cons with the team at Robert Fender Chevrolet, and stop by our dealership in Douglas when you’re ready to get behind the wheel!

3L Duramax Diesel vs. 5.3L V8: Key Specs

Simply put, the choice boils down to fuel efficiency and horsepower. The gas truck is quicker accelerating from a dead stop, and can hit a higher towing maximum (as you’ll see below). If you frequently travel between Fitzgerald and Ocilla and are looking to save on fuel, the lower cost of diesel fuel can really add up. Compare key performance specs for a diesel vs. gas truck, below:

5.3L V8 Gasoline Engine

  • Output – 355 horsepower and 383 pound-feet of torque
  • Efficiency (RWD) – EPA-estimated 17/23 city/highway MPG
  • Efficiency (4WD) – EPA-estimated 16/22 city/highway MPG
  • Availability – All Silverado trims

3.0L 6-cylinder Turbodiesel

  • Output – 277 horsepower and 460 pound-feet of torque
  • Efficiency (FWD) – EPA-estimated 23/33 city/highway MPG
  • Efficiency (4WD) – EPA-estimated 22/26 city/highway MPG
  • Availability – LT, RST, LTZ, High Country trims

Keep in mind that while both engines make 460 lb-ft of torque, the diesel delivers it by 1,500 rpm vs. 4,100 rpm for the V8. You’ll notice the difference on the highway, where the V8 must work a lot harder to generate the same amount of power.

3L Duramax Diesel vs. 5.3L V8: Towing Capability

Unquestionably, the V8’s biggest advantage is towing capability: it offers a max tow rating of 13,400 pounds compared to 9,300 pounds for the diesel. Many drivers will have all the power they need with the diesel, but you should opt for the V8 if you’ll be towing anything that’s heavy enough to be on the high end of the diesel engine’s capability, like a large boat or RV trailer.

What if you’re towing at altitude? In this case, the diesel may be your best bet because a naturally aspirated engine will lose power the higher you go. Thanks to its turbocharger, a diesel engine can compensate for some of this loss.

Compare Silverado Gas vs. Diesel Trucks With a test Drive at Robert Fender Chevrolet 

Questions about the benefits of diesel vs. gas trucks? At Robert Fender Chevrolet, a team of automotive experts is standing by to provide the info and specs you need to make an informed decision. Contact us for car-buying tips, or stop by our dealership in Douglas to take your favorite Silverado models for a test drive.

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