Fuel Economy

Engines EPA Estimated
Fuel Economy
(city/hwy)		 Fuel Tank Capacity
(gallons)
2WD Models Vortec 5.3L V8 SFI with Active Fuel Management 14/20 31
4WD Models Vortec 5.3L V8 SFI FlexFuel with Active Fuel Management Gasoline: 14/19
E85: 11/15		 31
2WD Models Vortec 6.0L VVT V8 SFI 12/17 31/39
4WD Models Vortec 6.0L VVT V8 SFI 12/17 31/39

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* The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all GMC vehicles' destination freight charges.
† Based on EPA estimates.