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GMC Sierra

Photo: GMC Sierra by Ethan Llamas, CC BY-SA 4.0, via Wikimedia Commons. It shows the model, not always this exact version.

GMC · model year 2008

2008 GMC Sierra C15 2WD

Pickup · Rear-Wheel Drive · Gas · EPA class: Standard Pickup Trucks 2WD

EPA figures · 2008fueleconomy.gov
16MPG combined
14/19MPG city / highway
$4,200fuel a year
555 g CO₂ per mile 4.8 L 8-cyl Automatic 4-spd
This car on fueleconomy.gov, read 2 October 2026. Your own figures depend on how and where you drive.

Where it places

The CarCody take

The 2008 GMC Sierra C15 2WD is a gasoline pickup with rear-wheel drive and an automatic 4-speed transmission. Its 4.8 L 8-cylinder engine is paired with an EPA combined rating of 16 MPG, with 14 MPG in city driving and 19 MPG on the highway. The EPA annual fuel cost is $4,200, and tailpipe CO2 is 555.44 g per mile. GMC classifies this configuration as a Standard Pickup Trucks 2WD. For buyers comparing pickup fuel use, the city and highway figures show how the combined rating breaks down, while the annual cost and emissions provide additional operating context. This entry is the Sierra C15 2WD configuration for model year 2008; its base model is the Sierra.

Good to know

  • Rear-wheel drive configuration
  • 19 MPG highway rating
  • Automatic 4-speed transmission

Watch for

  • 14 MPG city rating
  • 16 MPG combined rating
  • $4,200 annual fuel cost

Who it suits. It suits buyers looking for a gasoline pickup with rear-wheel drive who want to compare fuel use and emissions. Its 16 MPG combined rating and $4,200 annual fuel cost are useful figures for running-cost comparisons.

The 2008 Sierra C15 2WD pairs a 4.8 L V8 with rear-wheel drive and an automatic 4-speed transmission. Its EPA figures give buyers clear fuel-use, annual-cost and tailpipe-emissions measures to weigh.

Every figure on record

Efficiency
Combined MPG
16 MPG
City MPG
14 MPG
Highway MPG
19 MPG
Running cost
Annual fuel cost
$4,200
Tailpipe CO₂
555 g per mile
The car
Model year
2008
Body
Pickup
EPA size class
Standard Pickup Trucks 2WD
Drive
Rear-Wheel Drive
Powertrain
Engine
4.8 L 8-cyl
Transmission
Automatic 4-spd
Fuel
Gasoline

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