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View Full Version : Any GMT900 6.0/6L90 mileage figures?



Heavy Duty Neil
05-03-2007, 15:12
Anybody seen or heard any mpg numbers on the new body 2500HD trucks with 6.0 and the six-speed auto? I noticed you could get 3.73 gears with this combo and am wondering how they'll do compared to the 12-city/15-hwy that I get with my current rig.