jimmoore
Platinum Member
GJH, I have driven an international school bus for the last 3 years. It has a DT466 "diesel turbocharged" with an Allison AT500 transmission. It will make that 66 passenger bus "haul a$$. It's easy starting on cold mornings also. We get real good fuel milage out of them. Of course, they are not pulling the kind of load that you are talking about. 4th gear has an overdrive and as bird said they "freewheel" when you let off the throttle. We drive in 2nd or 3rd in town with stop & go driveing, that way the engine will help slow you down. I love the automatic tranny. jim