Skip navigation
fueleconomy.gov/m

Compare Cars

2005 GMC Sierra 2500 HD 4WD CNG Delete vehicle

2005 GMC Sierra 2500 HD 4WD CNG

6.0 L, 8 cyl, Auto 4-spd, Natural Gas

EPA Fuel Economy

Combined: 9 mpg

City: 8 mpg

Highway: 11 mpg

MPG estimates for 2016 and older vehicles may have been revised. Learn More

Average: 11.2 mpg

Range: 11  to  12 mpg

Based on 3 vehicles

Learn More

Annual Fuel Cost*: $4,900

Cost to Drive 25 Miles: $8.19

Tank Size: Not available

Cost to Fill the Tank: Not available

Miles on a Tank: Not available

*Based on 45% highway, 55% city driving, 15,000 annual miles and current fuel prices. Personalize

Learn More

Where can I buy compressed natural gas?

0.2 barrels per year

Learn More

Tailpipe CO2

781 grams per mile

Tailpipe and Upstream

 Upstream (g/mi)

 Tailpipe (g/mi)

Learn More

Learn More