The Duramax 6.6L V8 Turbo Diesel engine features
a Diesel Particulate Filter that traps solid particles
from the exhaust before they are emitted into the
atmosphere – reducing particulate matter emissions
by 90 percent. The engine is designed to run on
Ultra-Low Sulfur Diesel Fuel (ULSF), further reducing
emissions. The Duramax can also run on B5 Biodiesel –
a mix of 95 percent ULSF diesel and 5 percent
biodiesel. A “smart” turbocharger adds to Duramax’s
capabilities. It boosts performance in a wide range
of conditions, by enabling the boost pressure to be
controlled independent of engine speed. That
minimizes turbo lag and also reduces emissions.
HD POWER & TOWING
THE DURAMAX DIESEL HAS
MET ITS MATCH.
The available Duramax 6.6L V8 Turbo Diesel has no equal.
But it has met its match with the Allison six-speed automatic
transmission. Its advanced electronic controls produce more
precise, more efficient, faster and smoother shifts. The Allison®
transmission also incorporates such sophisticated features
as grade braking, cruise grade braking, shift stabilization
and Tow/Haul mode. The standard Silverado HD
engine-transmission combination is also noteworthy:
a 353 horsepower Gen IV Vortec 6.0L V8 mated with a
six-speed Hydra-Matic automatic transmission. With this
much power, it should come as no surprise that the capacities
are nothing short of astonishing: a maximum Gross
Combination Weight Rating of up to 10,660 kg (23,500 lb.).
That’s quite the load – Silverado HD is quite the truck.
24
22659 Silverado 08 ENG_24 8/21/07 9:40 PM Page 24
The advanced Allison 6-speed automatic transmission includes
grade braking and cruise grade braking. These features help you
maintain a constant speed when driving downhill by adjusting
the shift schedule, and using both the engine and transmission
to slow down. This reduces brake wear and enhances driver
control. The Allison transmission also uses shift stabilization,
which minimizes unnecessary shift cycling by preventing an
upshift in specific situations when it is preferable to remain in
a lower gear with less engine torque. A Tow/Haul mode can be
activated to raise the upshift and downshift points to further
reduce shift cycling and to improve performance when towing
or hauling a substantial load.
Silverado 2500HD Extended Cab LT standard box 4x4, shown in Silver Birch Metallic with available equipment.
25
22659 Silverado 08 ENG_25 8/10/07 10:57 PM Page 25
