2025 GMC Sierra 3500HD MPG & Gas Mileage Data

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55%
City
45%
Highway

Cost to Drive

Not EPA Tested
Sierra 3500HD Denali
vs
$222/mo
Avg. Truck

Est. Combined City/Hwy

Not Available
N/A City
N/A Highway

Tailpipe Emissions

Not Available
Sierra 3500HD Denali
vs
7.5 tons
Avg. Large Truck
Yearly estimate based on your driving miles.
Learn more about 2025 GMC Sierra 3500HD
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Build Your 2025 Sierra 2500HD
At a Glance:
  • 2 Trims
  • $46,300starting 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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