GMC Sierra 1500 Engine Specs

Red 2026 GMC Sierra 1500

From daily driving to heavy-duty hauling, there’s precious little that the 2026 GMC Sierra 1500 can’t do for the Rome driver. Available in eight unique trims from the baseline Pro to the off-road-ready AT4X and the mighty Denali Ultimate, and powered by no fewer than four engines, the 2026 GMC Sierra 1500 lineup is as formidable as it is versatile. Learn more about the specs of the GMC Sierra 1500 with Welborn GMC Of Cartersville here, then visit our dealership in Cartersville to tour our inventory.

What Engines Are Available For The 2026 GMC Sierra 1500?

The 2026 GMC Sierra 1500 lineup features four engine options, including the torque-heavy, diesel-powered 3.0L Duramax® engine. Review your engine options below, and contact us if you have any questions:

2.7L 4-Cylinder TurboMax™

  • 8-speed automatic transmission
  • 310 hp
  • 430 lb-ft of torque
  • Available Max Tow Up To 9,400 pounds

5.3L EcoTec3 V8

  • 10-speed automatic transmission
  • 355 hp
  • 383 lb-ft of torque
  • Available Max Tow Up To 11,200 pounds

6.2L EcoTec3 V8

  • 10-speed automatic transmission
  • 420 hp
  • 460 lb-ft of torque
  • Available Max Tow Up To 13,100 pounds

Duramax® 3.0L 6-Cylinder Turbo Diesel

  • 10-speed automatic transmission
  • 305 hp
  • 495 lb-ft of torque
  • Available Max Tow Up To 13,300 pounds

If you plan to lease or finance a 2026 GMC Sierra 1500 to do heavy-duty towing, check out our comprehensive 2026 Sierra 1500 towing guide for more information. You can also drop by and speak with our service technicians to get a gauge on the capabilities of this powerful lineup.

How Fuel-Efficient Is The 2026 GMC Sierra 1500?

The fuel efficiency of the 2026 GMC Sierra 1500 varies based on engine and drivetrain. Here’s a quick breakdown of the GMC Sierra 1500 mpg ratings:

2.7L 4-Cylinder TurboMax™

  • Up to 18 city / 21 highway mpg

5.3L EcoTec3 V8

  • Up to 16 city / 20 highway mpg

6.2L EcoTec3 V8

  • Up to 15 city / 19 highway mpg

Duramax® 3.0L 6-Cylinder Turbo Diesel

  • Up to 21 city / 24 highway mpg

Generally, 2WD variants of the 2026 GMC Sierra 1500 achieve slightly better fuel mileage than their 4WD counterparts due to several factors. These include weight (4WD systems are generally heavier) and the fact that more complex 4WD systems have more points of contact within the drivetrain, which creates friction and ultimately reduces the vehicle’s overall fuel efficiency. To learn more about the fuel economy of the 2026 GMC Sierra 1500, visit our dealership near Acworth or call us at %%di_phone_number%% to speak with our knowledgeable associates.

Explore The 2026 GMC Sierra 1500 With Welborn GMC Of Cartersville

Whether it’s for daily driving or for heavy-duty hauling, the versatile 2026 GMC Sierra 1500 lineup is fully capable of meeting your needs and more. Visit our dealership near Canton today for a test drive and to learn about the financial incentives we offer.

2025 GMC Sierra 1500 AT4X

The 2025 GMC Sierra 1500 engine options and GMC Sierra 1500 towing capacity provide Rome drivers with everything they need to work miracles at the job site. If you’re considering a Sierra 1500, explore key 2025 GMC Sierra 1500 specs, including the 2025 GMC Sierra 1500 mpg ratings. Then, fill out a secure finance application and swing by Welborn GMC Of Cartersville to experience the GMC Sierra in action in Cartersville! 

2025 GMC Sierra 1500 Engine Options

In total, there are four powertrains for our Acworth neighbors to consider. The 2025 GMC Sierra 1500 towing capacity and other GMC Sierra 1500 specs vary, depending on which engine you equip your Sierra with. Let’s compare the 2025 GMC Sierra 1500 engine specs and trim compatibility for each powertrain: 

2.7L TurboMax™ I4 Engine

Available On: Pro, SLE, Elevation

  • Horsepower: 310 hp
  • Torque: 430 lb-ft
  • Max Towing Capacity: 9,500 pounds
  • Transmission: 8-speed automatic transmission

5.3L EcoTec3 V8 Gas Engine

Available On: Pro, SLE, Elevation, SLT, Denali

  • Horsepower: 355 hp
  • Torque: 383 lb-ft
  • Max Towing Capacity: 11,200 pounds
  • Transmission: 10-speed automatic transmission

Duramax® 3.0L Turbo Diesel I6 Engine

Available On: SLE, Elevation, SLT, Denali, AT4, AT4X, Denali Ultimate

  • Horsepower: 305 hp
  • Torque: 495 lb-ft
  • Max Towing Capacity: 13,200 pounds
  • Transmission: 10-speed automatic transmission

6.2L EcoTec3 V8 Gas Engine

Available On: SLT, Denali, AT4, AT4X, Denali Ultimate

  • Horsepower: 420 hp
  • Torque: 460 lb-ft
  • Max Towing Capacity: 13,000 pounds
  • Transmission: 10-speed automatic transmission

2025 GMC Sierra 1500 MPG Ratings 

While the 2025 GMC Sierra 1500 engine options are remarkably powerful, you’ll be surprised when you view the GMC Sierra 1500 mpg ratings below. They’re exceptionally efficient for the half-ton truck segment. 

  • Pro: 18 mpg city/21 mpg highway
  • SLE: 18 mpg city/21 mpg highway
  • Elevation: 18 mpg city/21 mpg highway
  • SLT: 16 mpg city/20 mpg highway
  • AT4: 22 mpg city/26 mpg highway
  • Denali: 16 mpg city/20 mpg highway
  • AT4X: 19 mpg city/20 mpg highway
  • Denali Ultimate: 15 mpg city/19 mpg highway

Experience the 2025 GMC Sierra 1500 Engine Options! 

Come experience the 2025 GMC Sierra 1500 engine specs in action near Canton when you test-drive the 2025 GMC Sierra 1500 trims at Welborn GMC Of Cartersville. If you have questions about the 2025 GMC Sierra 1500 towing capacity or 2025 GMC Sierra 1500 mpg ratings before you head over, call us at (678) 792-4501. Also, be sure to explore our GMC information guides for other helpful reads on topics!

2024 GMC Sierra 1500 in the mountains

When shopping for a pickup truck as your next new vehicle in Cartersville, we highly recommend the 2024 GMC Sierra 1500. It’s got everything you need for Acworth drives thanks to a high-tech cabin, a stout engine, and a towing capacity that can handle more than 10,000 pounds when you choose the right powertrain from the GMC Sierra 1500 engine options. 

Read our guide to the 2024 GMC Sierra 1500 performance from Welborn GMC Of Cartersville near Rome. We’ll also talk about the 2024 GMC Sierra 1500 towing capacity as well as the 2024 GMC Sierra 1500 mpg ratings.

GMC Sierra 1500 Engine Options: Selectable Traction Modes

The 2024 GMC Sierra 1500 offers selectable traction modes, so you can tailor your driving experience to the road conditions you’re experiencing. Explore some of these modes below:

  • Tour
  • Sport
  • Terrain
  • Snow (2WD models only)
  • Tow/Haul
  • Off-Road

GMC Sierra 1500 Engine Options: Payload Capacity

If you favor cargo in the bed over towing, your chosen cab/bed configuration and trim level can give you a payload capacity of up to 2,240 pounds for your GMC Sierra 1500. You’ll have plenty of capacity for your job site work and for heading to your favorite campsite or beach destination.

2024 GMC Sierra 1500 Engine Options

Now, we look at the powerful GMC Sierra 1500 engine options, giving you a variety of choices depending on your needs around Canton. 

2.7L I4 TurboMax™ Engine

  • Standard on: Pro, SLE, Elevation 
  • 310 hp, 430 lb-ft torque (Best-In-Class standard torque)
  • Eight-speed automatic transmission

5.3L EcoTec V8 Engine

  • Standard on: SLT, Denali
  • Available on: Pro, SLE, Elevation
  • 355 hp, 383 lb-ft of torque

3.0L Duramax® Turbo Diesel Engine

  • Standard on: AT4, AT4X
  • Available on: SLE, Elevation SLT, Denali, Denali Ultimate
  • 305 hp, 495 lb-ft of torque
  • 10-speed automatic transmission

6.2L V8 Engine

  • Standard on: Denali Ultimate
  • Available on: SLT, AT4, Denali, AT4X
  • 420 hp, 460 lb-ft of torque
  • 10-speed automatic transmission

2024 GMC Sierra 1500 MPG

These engines perform very well, and you’ll get very good towing capacity figures. But that doesn’t mean you have to sacrifice fuel economy. See the 2024 GMC Sierra 1500 mpg specs with this list here.

  • 2024 GMC Sierra 1500 mpg for the 2.7L I4 TurboMax™ Engine: Up to 18 city / 22 highway (2WD) and up to 17 city / 20 highway (4WD)
  • 2024 GMC Sierra 1500 mpg for the 5.3L EcoTec V8 Engine: Up to 16 city / 20 highway (2WD) and up to 15 city / 20 highway (4WD)
  • 2024 GMC Sierra 1500 mpg for the 3.0L Duramax® Turbo Diesel Engine: Up to 23 city / 29 highway (2WD) and up to 23 city / 27 highway (4WD)
  • 2024 GMC Sierra 1500 mpg for the 6.2L V8 Engine: Up to 15 city / 19 highway

2024 GMC Sierra 1500 Towing Capacity

You invest in a pickup truck for the towing power and cargo-hauling feats. See the 2024 GMC Sierra 1500 towing capacity numbers here, which are impressive across all GMC Sierra 1500 engine options. 

  • 2024 GMC Sierra 1500 Towing Capacity for the 2.7L I4 TurboMax™ Engine: Maximum towing capacity of 9,500 pounds
  • 2024 GMC Sierra 1500 Towing Capacity for the 5.3L EcoTec V8 Engine: Maximum towing capacity of 11,200 pounds
  • 2024 GMC Sierra 1500 Towing Capacity for the 3.0L Duramax® Turbo Diesel Engine: Maximum towing capacity of 13,300 pounds
  • 2024 GMC Sierra 1500 Towing Capacity for the 6.2L V8 Engine: Maximum towing capacity of 13,100 pounds

Test-Drive Your Favorite 2024 GMC Sierra 1500 for Sale at Welborn GMC Of Cartersville

Ready for a closer look? Contact us or call (678) 792-4501 to schedule a test drive with our team. We’re happy to help in any way we can! Meanwhile, crunch some financial numbers with our payment calculator to develop a monthly budget.

2019 GMC Sierra 1500 Grill

Like most Cartersville drivers, you’re likely aware that the GMC Sierra 1500 is built to handle the tough jobs. But how good is this pickup truck on gas? The 2023 GMC Sierra mpg estimates are better than you might expect for a truck of its class, as it’s estimated to get up to 29 miles per gallon on the highway. Of course, there are multiple powertrains available, and the GMC Sierra 1500 mpg estimates do vary by engine. Let’s talk about the GMC Sierra gas mileage in more detail and look at the other impressive performance specs of this vehicle.

 

 

2023 GMC Sierra Gas Mileage by Engine

There are four powerful engine options for the Sierra 1500, each being able to crank out well over 300 horsepower. But the best GMC Sierra mpg estimates come from the Enhanced 3.0L Duramax Turbodiesel engine. This powertrain happens to offer best-in-class horsepower, torque, and 4WD towing for a diesel engine. But you can’t go wrong when it comes to power, regardless of the engine option you choose. The most powerful engine is the 6.2L V8 that offers 420 available horsepower, and 460 lb-ft of torque. Here are the performance specs you can expect to get on our Rome roads:

2023 GMC Sierra Gas Mileage and Other Performance Specs

Enhanced 3.0L Duramax Turbodiesel

  • Best-in-class diesel horsepower of 305
  • Best-in-class torque of 495 lb.-ft.
  • Active thermal management 
  • Best-in-class 4WD diesel towing capacity: up to 13,000 lbs.
  • 10-speed automatic transmission
  • Estimated GMC Sierra 1500 MPG – 24 city / 29 Highway

6.2L V8

  • 420 available horsepower 
  • 460 lb.-ft. of available torque  
  • Dynamic Fuel Management
  • Max available trailering: up to 13,000 lbs.
  • 10-speed automatic transmission
  • Popular option with Acworth drivers
  • Estimated GMC Sierra 1500 MPG – 15 city / 19 Highway

5.3L V8

  • 355 available horsepower
  • 383 lb.-ft. of available torque
  • Max available trailering: up to 11,200 lbs.
  • Estimated GMC Sierra MPG – 16 city / 21 Highway

2.7L Turbo High-Output

  • 310 available horsepower
  • 430 lb.-ft. of available torque
  • Max available trailering: up to 9,500 lbs.
  • Estimated GMC Sierra MPG – 18 city / 20 Highway

Check Out the GMC Sierra at Welborn GMC Of Cartersville!

Are you ready to get behind the wheel of this beast of a truck? Then let us help you drive home in one of your own. In the meantime, check out our detailed overview of the 2023 Sierra, as our post on its beautiful color options. We’re conveniently located near Canton. So, drop by or contact us today.

 

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125 S Dixie Ave, Cartersville, GA, 30120
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