2 of 2 people found this review helpful
6 liter gas
By Gary Nichols on
Vehicle2010 Chevrolet Silverado 2500HD LTZ 4dr Extended Cab 4WD SB (6.0L 8cyl 6A)
ReviewVery poor gas mileage, average 11 mpg, transmission constantly shifting into passing gear to catch up on a very low incline or small head wind
Best FeaturesRugged, fun to drive.
Worst FeaturesImprove MPG, put the Allison in the gas truck
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