Active Fuel Management (AFM) can boost fuel efficiency by up to 12 percent
DUBAI – Today, one of the biggest issues facing pickup truck enthusiasts in the Middle East is that they often feel that they have to compromise between power and fuel efficiency. The enhanced 2016 Chevrolet Silverado requires no such trade-off, thanks to the vehicle’s Active Fuel Management-equipped (AFM) EcoTec3 engines.
AFM’s cylinder deactivation system can boost fuel economy by up to 12 percent without forfeiting performance.
The premise behind AFM technology is simple: saving fuel can be as easy as shutting off engine cylinders when they aren’t needed. AFM does exactly this by allowing the engine to operate on either all of its cylinders, or in V-4 mode, depending on the driving conditions.
The truth is, most of the time, vehicle owners have more power than they need. Many consumers choose V-8 engines for driving performance or towing and hauling, yet during every day driving, that powerful engine operates at a fraction of its capability. This reduces engine efficiency, which means less than optimal fuel economy.
AFM saves fuel by using four of the engine’s cylinders during some driving situations – such as highway cruising – and then seamlessly reactivates the other cylinders when a driver demands more power for acceleration, climbing a grade or hauling.
Under AFM, when only a fraction of the available power is needed to keep the vehicle moving, the fuel delivery to four of the six or eight cylinders is switched off and a solenoid system collapses the valve lifters to reduce the pumping losses and improve fuel efficiency.
To guarantee additional energy savings, all three of the 2016 Silverado’s EcoTec3 engines also use a compact overhead-valve design and weight-saving components such as aluminum blocks and cylinder heads, to reduce mass.
The EcoTec3 lineup for the 2016 Silverado – which is currently available for sale in showrooms across the Middle East – includes a 4.3L V-6 and 5.3L V8 and 6.2L V-8s, all matched with proven, efficient six-speed or new 8-speed automatic transmissions (Standard on LTZ). A 4.3L V-6 is SAE-certified at 285 horsepower and 413 Nm of torque, a 5.3L V-8 is certified at 355 horsepower and 519 Nm of torque, and a 6.2L V-8 is certified at 420 horsepower and 624 Nm of torque.
All three EcoTec3 engines provide the proven power, torque and dependability of a large-displacement engine, seamlessly switching to four-cylinder mode to save fuel during light-load driving – a direct outcome of AFM technology. The result? The 5.3L V-8 has fuel economy of up to 10.2 L/100km highway (2WD models), the best of any V-8 pickup.