2015 Cascadia Evolution

This is best way to show what I'm doing with my 2014 Cascadia Evolution with the DT12, my pump to pump fuel economy. No bluffing or padding the numbers, but actual fuel purchased with truck in service up to last fuel yesterday. I use the Road Trip HD app on iPad for tracking my fuel. On light and empty trailers the dash MPG gauge has been showing over 11+ mpg on those short legs.
Versus my old 2006 Classic which averaged 6.32 mpg for the past full year before I stepped into this truck, its a drastic improvement. I miss all the chrome and stainless it had, but when you start working the numbers (following based upon my companies fuel contract at the time when I calculated these back in March), here's what it looks like
Stepping up from 6.32 mpg to 7.5 yields a yearly savings of $31145,
8mpg = $35983
8.5mpg = $40118
9mpg = $44094
9.5mpg = $47087

Hard to argue with numbers like these. Every time my auto shift slips into E-Coast, it's $$$ in the bank.



For comparison, the last fuel before I stepped out of my 06 is below.

 

everything OK with you mpg,only you numbers not ok for the money, you talking about the miles from a teamtruck I spend last year 68k on fuel or you example 68k -6.32mfg after 7,5 is 18,66% SAVING= 12689$ you numbers to High

 

Sorry those numbers are in Canadian dollars based upon approx 128000 yearly miles and company fuel contract price at time of calculation (March 2014). Dollar figures are correct at time of pricing and are only a projection of saving based upon those numbers. Individual savings will vary with any fluctuation in actual pump to pump diesel pricing. The MPG were the figures that are key in my post. Two trucks driven the same way: avg 60 mph utilizing cruise control as frequently as possible , a Classic vs a Cascadia Evolution. Key differences being aerodynamics, new engine ( 60 Series DD vs DD15 ) and auto shift DT12 vs manual 13 OD.

Hope that clarifies things for anyone.

 

Uhhhh... why?

 

my guess is because the dt12 and new ishift go into neutral on the cruise as long as you dont let cruise go full throttle uphill most people who arent on their toes will do better on cruise

 

He's not comparing 2 autos, he's comparing auto vs. manual.

All that proves is that cruise performs better for auto than manual, and that's a no-brainer.

 

Ok so just what is the question you are trying to ask? Or what discussion points you have to add? Driving Force asked in post 9 about fuel economy could be expected and at what speeds. What I'm contributing is MY experience with my 2014 Cascadia Evolution in relation to my previous truck which was a 2006 Classic. Unfortunately the OP was questioning antenna mountings and the thread was directed elsewhere after post 9.

 

Conventional wisdom suggests that manuals outperform automatics on fuel economy when both are driven properly (ie, manual sans cruise).

Nothing in your post refutes that ideology, which is a shame because I have no doubt autos can outperform manuals (at least, I'm certain iShift can outperform them).

 

With mpg, all depends on a driver, tires, gear ratio, weight, and the aerodynamics. Not just the transmission.

 

What engine is better for a good Mpg 435 HP or 505 HP Detroit