Although the U.S. truck market is amid a heavy decline, there are still those that need the capabilities of a pickup truck for various reasons. Because of this fact, General Motors is hard at working developing its next-generation of heavy duty pickups and our spy photographers just spotted a GMC Sierra Heavy Duty mule undergoing some real world testing.
Making no effort to disguise itself, the 2010 GMC Sierra 2500 in these pictures is running with GM’s updated 6.6-liter Duramax V-8 under its hood. The Duramax is expected to receive a significant increase in horsepower and torque next year (well over 700 lbs-ft of torque, sources tell us) as well as meeting full Tier 2 Bin 5 federal emissions rules - the toughest clean diesel standard in the world. The Sierra’s grille has been toned down (from four horizontal bars to three with a squat honeycomb pattern running the length of each bar) and its front bumper has a larger inlet for the Allison transmission’s oil cooler, like the 2010 Chevrolet Silverado 2500 we recently spied.
If you look closely at shots of the Sierra’s right front passenger side you can see what we believe is a temporarily placed urea tank attached to the frame for testing out the new emissions system. Urea fluid is injected into the exhaust stream to reduce nitrogen oxide levels. When it reaches production, the urea tank will have to be refilled periodically during routine maintenance and service.


10/10, 3:21 PM
posted by:
Lariat Luxury Locomotive Liner No.3
Hell, GM has ran out camouflage funds.
10/10, 3:41 PM
posted by:
Lau
^ LOL LLL3
10/10, 4:16 PM
posted by:
pavlindrom
that is the funniest comment for the week.
10/10, 4:56 PM
posted by:
tyler_is_aero_tt
Hahahaha good one.
10/10, 9:54 PM
posted by:
Get Real
Business report said GM is burning 1 Billion bucks a month.
Vehicles like this are NOT what they need to burn cash on. But GM is stubburn GM.
10/11, 10:07 AM
posted by:
monte
I think they have to do this to meet emission standards and keep up with power figuers. It’s not as if the truck is a total redesign.. Besides drivetrain, I don’t think they made any big changes.
10/12, 8:31 PM
posted by:
sudo95
It’s not being stubborn. It’s being fiscally responsible by not wasting the $100’s of millions already spent on the previous 4 years of development on this vehicle.
10/13, 4:02 PM
posted by:
C6Racer
Go GMC! Without trucks like these, things like building construction, and everything a big truck should be used for, would not be possible, so I suggest that YOU get real.