Features & Benefits - GMC 2013 Sierra Options Manual

1500 enGines
Vortec gasoline-powered V-6 and V-8 engines available in sierra 1500 are
remarkable for the technology they bring to the full-size pickup. The results:
power of up to 403 hp from the available Vortec 6.2l V-8, and competition-
leading V-8 fuel efficiency of up to 22 mpg hwy from the available Vortec 5.3l V-8.
1 EPA-estimated 22 mpg hwy for Sierra XFE. Based on 2012 GM Large Pickup segment.
1
vortec 5.3L v-8 Engine
VORTEC ENGINES To give you VARIABLE VALVE TIMING
1
uncompromised power and torque for easy responsiveness in low-
for confident daily driving, passing speed city driving and bold power
and trailering, look no further than for open-road passing or trailer-
the Vortec engine family. each ing, many Vortec engines feature
model uses innovative "vortex VVT. it monitors and changes
technology" to swirl and tumble valve open and close points for
incoming air and fuel for optimum near-peak levels of torque across
power and response. the entire range of engine speeds.
16 | features & Benefits
1
2
2
HYDRAULIC VALVE LIFTER
VALVE
ACTIVE FUEL MANAGEMENT
(vvT)
2
sierra 5.3l V-8 engines use active
fuel Management. This available
system senses load and demand,
then activates or deactivates four
of the engine's eight cylinders. in
sierra Xfe, the result is competition-
leading V-8 epa-estimated
highway fuel economy of 22 mpg.
2
a valve lifter (above) deactivates
the cylinder. Under high-demand
conditions, the valve's switching
mechanism is depressurized,
reengaging the cylinder and
restoring full power, without you
ever noticing the transition.
2 Based on GM 2012 Large Pickup segment.
Hd enGines
sierra 2500Hd and 3500Hd models offer Vortec V-8 gasoline and duramax
diesel engines. no matter which you choose, you'll have plenty of what you
demand from a heavy-duty pickup: power and torque, with deep reserves of
both for when your right foot asks for maximum effort.
3
DURAMAX DIESEL 6.6L V-8 DURAMAX B20 BIODIESEL
3
TURBO With direct-injection CAPABILITY To reduce carbon-
technology that helps it start in as dioxide emissions and stretch
little as 3.0 seconds at -40°f and a your fuel budget, the duramax
sophisticated allison® transmission 6.6l can operate on B20 biodiesel,
with overdrive, the available a mix of 20 percent biodiesel from
duramax diesel 6.6l gives you a domestic, renewable resources,
maximum highway range of up to and 80 percent petroleum diesel.
680 miles on a single fill-up.
3
3 Based on GM testing and fuel tank capacity.
Your range may be less.
DURAMAX HIGH-PRESSURE
DIRECT INJECTION for fast starts
in cold weather, quieter operation
and maximum efficiency, the
direct injection system operates
at nearly 30,000 psi to turn heavy
diesel fuel into a fine mist,
burning cleaner and faster with
lower emissions and greater
power than the previous model.