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2013 GMC Sierra 2500HD Crew Cab
Fuel economy:N/A
What's New for 2013 For 2013, the GMC Sierra 2500HD gains a new bi-fuel-compatible 6.0-liter V8. This engine option allows owners to run either compressed natural gas (CNG) or gasoline.
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2013 GMC Sierra 2500HD Extended Cab
Fuel economy:N/A
What's New for 2013 For 2013, the GMC Sierra 2500HD gains a new bi-fuel-compatible 6.0-liter V8. This engine option allows owners to run either compressed natural gas (CNG) or gasoline.
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2013 GMC Sierra 2500HD Regular Cab
Fuel economy:N/A
What's New for 2013 For 2013, the GMC Sierra 2500HD gains a new bi-fuel-compatible 6.0-liter V8. This engine option allows owners to run either compressed natural gas (CNG) or gasoline.