FREE TO FAIL
Seasoned Expediter
I recently purchased a 2006 sterling express cruiser with the 330 hp mercedes engine with the allison 6 speed. nice truck but quite frankly a dog on the road.... truck has 300k on it but seems to run fine. My question is wheres the power? I was hauling about 7.5k on i -44 in mo. and the truck was losing about 10 miles an hour climbing. fuel economy wasnt that great either. I was wondering what kind of rear axle ratio is appropriate for these trucks? additionally is the allison auto that big of a power leach? any ideas what it could be? I would appreciate any info on these units.