Which truck/engine combo?

I cannot tell you how many times I've jockeyed back and forth with a governed truck of similar speed. If I'm lighter, I can pull ahead going up hills, then they have the weight to push themselves by me going down hill... or vice versa. I'll usually set my cruise 2-3 miles slower just to remain sane.

Most runs I'd be doing are similar to what I do now, 200-400 mile runs one way. I'm a tightwad, so my natural tendency is to drive slower.

 

The 2018 DT12 I drive has a PTO, also has the DD13 which I really like. The mechanics (I work with) have told me that the DD13 and the Paccar MX13 both have proven reliable up to 500K miles when our company sells them. I was just wondering if the bigger engines had some kind of fuel economy advantage. I know the DD13 450hp struggles up hills... I could live with it, but would prefer not to.

 

Yes, it's a fleet truck, 450 hp and 1650 torque is what it shows in the mechanics computer, 1350 rpm @ 65 mph. It's limited in all sorts of ways best I can tell, trying to squeeze all the miles they can out of 1 gallon of fuel... don't blame them, they have 1,100 trucks

 

I think those trucks are getting a $40,000 premium these days

 

It can make the difference between getting offloaded/loaded or neither.