2007 GMC Sierra 2500HD Consumer Review: My first diesel
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2007 GMC Sierra 2500HD - Consumer Review

2007 GMC Sierra 2500HD

Average Consumer Rating

19 Total Reviews

SLE2 Extended Cab Pickup (6.0L V8 6-speed Automatic 6.6 ft. Bed)

Performance
Comfort
Fun-to-Drive
Interior
Exterior
Build Quality
Reliability Value
My first diesel
By cdietz on

Vehicle

2007 GMC Sierra 2500HD SLE2 4dr Extended Cab SB (6.0L 8cyl 6A)

Review

I never had a diesel before but my prior experience with gas trucks was tainted with getting 13-15 mpg. So I opted for the diesel with the allison. Wow. I get 19mpg average and on highway trips I average 21.5. I put about 31000 on it so far in 10 months of ownership and I have no complaints. The true genius of this whole setup is the transmission. In tow/haul mode it downshifts for you when you brake while matching revs. Really saves the brakes and instills total confidence in pulling heavy loads - skid steers, tractors, trailers full of blocks, etc. I get about 15-16mpg while towing on the highway. Great truck!

Best Features

Allison transmission is awesome and limitless power from the diesel. Very quiet on the road.

Worst Features

Smaller tailpipe. People think I am trying to make a statement...
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