Available E85

E85 ethanol Flex Fuel capable vehicles are designed to run on E85 ethanol fuel, gasoline, or any blend of both fuels. So the choice is always yours. Made from U.S. grown bio-material, like corn or grain products, E85 ethanol:

• Can reduce our dependence on oil
• Helps reduce carbon dioxide emissions
• Provides more horsepower than standard gasoline
• Boosts your engine's performance

Note: Go to livegreengoyellow.com to determine whether E85 fuel is available near you.

Available on Sierra and Yukon models with the Vortec 5.3L V8 Flex-Fuel engine.

Available Spark Ignition Direct Injection

Engines with this technology: Inject the fuel directly into the cylinder like a diesel Allow the engine to breathe more air for greater torque and horsepower Allow increased compression ratio (for improved performance and fuel economy)

Active Fuel Management

A masterpiece of innovation, Active Fuel Management allows the engine to seamlessly shift from 8 to 4 cylinders temporarily whenever less power is needed. The result is an impressive improvement in fuel economy. Helps makes Yukon among the most fuel-efficient full-size SUVs in the industry.*

*Excludes GM vehicles. EPA estimates: SLE and SLT 2WD with LY5 engine 16 city/ 22 highway; LMG engine 16 city/21 highway. Standard on Vortec 5.3L V8 and Vortec 6.0L V8 engines.