New bus rolling: questions

[o1marc]

The best fuel mileage that I was able to observe on my recent trip was 7.7 MPG. On one leg, where I covered 300 miles between fueling stops, I observed 7.4 MPG. This was all open highway driving using cruise control. Oh how sweet it would be to get 10 mpg! If I understand what I’ve been reading, many diesel engines that are under a strict emissions control regime, can have their fuel consumption improved significantly by re-programming the ECM. As the later C7 common rail engines begin to fall out of warranty, I am hoping that some reasonably priced aftermarket tuning services will be offered in the marketplace.

I suspect turning up the power level decreases the MPG.

 

[okinawascuba]

Sorry about the repetitive sentences and I’m using dictation on an iPhone and for some reason it is it it has a habit of doubling whatever I’ve dictated. Kind of frustrating

Thought I was losing my mind...