Duramileage CPM programming done!

Coop45

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Ok, guys, just put in the duramileage CPM, and as of right now, I am impressed!
The low end power is smooth and strong! The off idle is much more responsive.
Mileage from the DICS before was 19-20 on the freeway flat ground for 30 miles.
Same exact route yesterday was 24-28! Mpg.
This was at 70mph rpm was about 17-1800.
The truck feels like it is coasting down the freeway at 70mph?
Truck runs much smoother? I like it very much so far.
Heading to flaming gorge towing my travel trailer and atv trailer, loaded!
I will give you all the hand calculated numbers when I get back.
But as of right now, the fuel needle is not moving as fast to the empty side!
And I like that!
Coop45
 

dave4881

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After you've run a full tank, check the mileage by hand (not the DIC) and let us know what you get!
 

Coop45

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With the stock ecm I was getting 16mpg hand calculated.
Now I am getting 17.5 with a lot more power, and better drive ability.
I will keep checking, as I have had the ecm programed again for the next higher out put!
 

Shaggy

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You have a link to were you picked up the CPM? Wouldn't mind check this out.
 
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