[Bill Schwab]

Pelican:

Since the 45-5500's we have are running 6.6 liters and Allison auto's, I can only tell you this. At the foot of a 3 mile, 7° grade, pulling a 12,000 lb load on a trailer, and 4 yards of gravel on the truck's dump body, we head up and at midstream where many trucks usually run out of steam and lugs down to 40-50mph, I can floor the trucks, any of them, and hit 70 by the time we reach the summit.

As far as the 7.8 liter Dmax goes, it's a 6 banger, it hosts 220HP, and 120 more ft lbs of torque at 1500 RPM. Because of how well the 6.6's pull for us, I am putting confidence in the bigger version.