2025 GMC Sierra 1500 Performance

Do you need a workhorse for job sites around Kingsport? The 2025 GMC Sierra 1500 engine specs might come through for your light-duty tasks when you need exceptional towing capabilities around Bristol. Choose from four GMC Sierra 1500 engine options based on your requirements. You might be surprised by the fuel efficiency of this truck, so we’ll also discuss the GMC Sierra 1500 mpg. 

Learn all the details about the 2025 GMC Sierra 1500 engine specs and performance with our guide from Champion Chevrolet of Kingsport. When ready, start the process by getting pre-approved in our secure online application.

2025 GMC Sierra 1500 Engine Options

As we stated, you have four 2025 GMC Sierra 1500 engine options, all of which have different specs and towing capabilities for your tasks around Greeneville. If you need more towing capabilities and horsepower, we suggest browsing our inventory of the GMC Sierra HD trucks. See our list of the 2025 GMC Sierra 1500 engine specs here:

2.7L TurboMax™ I4 Engine

Available On: Pro, SLE, Elevation

• Horsepower: 310 hp

• Torque: 430 lb-ft

• GMC Sierra 1500 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

• GMC Sierra 1500 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

• GMC Sierra 1500 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

• GMC Sierra 1500 Towing Capacity: 13,000 pounds

• Transmission: 10-speed automatic transmission

2025 GMC Sierra 1500 MPG Ratings 

You’ll note that all of the engines are powerful. But did you know that the GMC Sierra 1500 mpg ratings are equally as impressive? See the fuel economy figures here:

• 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

Test-Drive the 2025 GMC Sierra 1500 at Champion Chevrolet of Kingsport

Ready to get behind the wheel of this rugged pickup truck? Contact us online or call (423) 408-8466 to schedule a test drive with our team. Until we meet, explore our new vehicle specials to see how much you could save on your favorite trim. You can also trade your existing model in with our team. Discover the newest GMC Sierra 1500 around Kingsport with Champion Chevrolet of Kingsport!