[rbarrios]

Did you reset the DIC mpg ?
11 may be the number since it was last reset...
I reset mine everytime i fill up with gas.
This weeks tank is showing 24.1 mpg.
Get to the mpg screen, hold down the checkmark button, and it resets to 0.
Hopefully that is yiur issue.

 

[rbarrios]

Very interesting.
I have a post somewhere here.
I did a test.
Hand calc vs
Laptop software vs
DiC.
After test run... all were extremely close to each other.

Thinking out loud. Stick tire size?

 

[rbarrios]

Question..
Next time you drive, once at cruising speed... say youre at 60 or 70.
How many RPMs is the tach showing?