The 2010 GMC Sierra-1500-Hybrid runs on regular unleaded.
The 2010 GMC Savana runs on flex-fuel (FFV).
The 2010 GMC Yukon runs on flex-fuel (FFV).
The 2010 GMC Sierra-2500HD runs on flex-fuel (FFV).
The 2010 GMC Terrain runs on regular unleaded.
The 2010 GMC Acadia runs on regular unleaded.
The 2010 GMC Canyon runs on regular unleaded.
The 2010 GMC Yukon-XL runs on flex-fuel (unleaded/E85).
The 2010 GMC Sierra-3500HD runs on regular unleaded.
The 2010 GMC Sierra-1500 runs on regular unleaded.
The 2010 GMC Yukon-Hybrid runs on regular unleaded.
The 2010 GMC Savana-Cargo runs on regular unleaded.
The 2010 GMC Savana has a 4-speed automatic.