2025 GMC Sierra 1500 MPG & Gas Mileage Data

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1 of 354
55%
City
45%
Highway

Cost to Drive

$254/mo
Sierra 1500 SLT
vs
$243/mo
Avg. Truck
Monthly estimates based on costs in Illinois

Est. Combined City/Hwy

17 MPG
15 City
19 Highway

Tailpipe Emissions

8.7 tons CO2
Sierra 1500 SLT
vs
7.5 tons
Avg. Large Truck
Yearly estimate based on your driving miles.
Learn more about 2025 GMC Sierra 1500
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Build Your 2025 Sierra 1500
At a Glance:
  • 1 Trim
  • $65,400starting MSRP
Build & Price GMC.com
*The Manufacturer’s Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees, and optional equipment. Dealer sets final price. Click here to see all GMC vehicles’ destination freight charges.
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