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New 2014 Silverado EcoTec3 Engine
When you think of fuel efficiency in a Truck, it's pretty much non-existent. Trucks guzzle gas like nobody's business, and with today's gas prices, it's not really logical to own one for everyday personal use. Our thinking of this is about to change.
By: Hank Graff Chevrolet
Direct Injection: Monitors a number of variables to determine the precise measure of highly pressurized fuel to inject into each cylinder. The result is combustion that optimizes engine power and fuel efficiency while reducing emissions.
Active Fuel Management: In low-demand situations when full engine power is not needed, Active Fuel Management deactivates cylinders, effectively turning a V-6 or V-8 EcoTec3 engine into a fuel-sipping four cylinder. When it senses the need for full power, AFM instantly re-engages all cylinders.
Variable Valve Timing: Ensures Silverado performs at optimum power and efficiency. It continuously varies valve timing to keep our EcoTec3 engines operating near peak output across a wide rpm range, while minimizing emissions.
So in simple terms: Direct Fuel Injection optimizes engine power and fuel efficiency while reducing emmissions; Active Fuel Management deactivates cylinders, effectively turning an EcoTec3 Engine into a fuel-sipping four cylinder; and Variable Valve Timing allows a peak output across a wide rpm range, while minimizing emissions. Only the Ferrari has these three options together in one engine, and I think that speaks volumes on its own.
Information taken straight from Chevrolet's website
Page Updated Last on: Aug 17, 2013