The 2006 GMC Sierra-1500 runs on regular unleaded.
The 2006 GMC Savana runs on regular unleaded.
The 2006 GMC Canyon runs on regular unleaded.
The 2006 GMC Yukon runs on regular unleaded.
The 2006 GMC Yukon-XL runs on flex-fuel (unleaded/E85).
The 2006 GMC Savana-Cargo runs on regular unleaded.
The 2006 GMC Sierra-2500HD runs on regular unleaded.
The 2006 GMC Savana has a 4-speed automatic.
The 2006 GMC Yukon has a 4-speed automatic.
The 2006 GMC Canyon has a 5-speed manual.
The 2014 GMC Savana runs on flex-fuel (FFV).
The 2010 GMC Savana runs on flex-fuel (FFV).
The 2012 GMC Savana runs on flex-fuel (FFV).