Fuel Economy

Engines EPA Estimated
Fuel Economy
(city/hwy)		 Fuel Tank Capacity
(gallons)
Long
Box
2WD Models with 6-speed automatic transmission Vortec 6.0L V8 Not Available 34
4WD Models with 6-speed automatic transmission Vortec 6.0L V8 Not Available 34
2WD Models with 6-speed automatic transmission DURAMAX 6.6L Turbo Diesel V8 Not Available 34
4WD Models with 6-speed automatic transmission DURAMAX 6.6L Turbo Diesel V8 Not Available 34

HELP CENTER | CONTACT US | SITE MAP | gm sites | copyright & trademark information | New Privacy Statement | EXPERIENCE ONSTAR | GMC ESPAÑOL © 2007 general motors corp.
* 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.