GMC Sierra
An industry leader in fuel economy, capability and performance, the broad GMC Sierra lineup includes everything from job-ready Work Truck models to the unique combination of performance and luxury that is the Sierra Denali.
For 2010, the Sierra 1500's 4.8-liter, 5.3-liter and 6.2-liter V8 engines offer E85 capability, while the 4.8-liter and 5.3-liter engines now feature variable valve timing. A six-speed automatic transmission is added to regular and extended cab models with the 5.3-liter V8 (previously it was offered only on crew cab models); and all 5.3-liter-equipped models feature a standard 3.08 axle ratio that enhances fuel economy.
For 2010, the Sierra 1500's 4.8-liter, 5.3-liter and 6.2-liter V8 engines offer E85 capability, while the 4.8-liter and 5.3-liter engines now feature variable valve timing. A six-speed automatic transmission is added to regular and extended cab models with the 5.3-liter V8 (previously it was offered only on crew cab models); and all 5.3-liter-equipped models feature a standard 3.08 axle ratio that enhances fuel economy.
International Organization of Motor Vehicle Manufacturers