How long to set a baseline?

[euromodder]

Originally Posted by Fat Charlie

Did you reinstall it?

Not yet .
I wonder if I'm going to see any change in mpg when it gets reinstalled.

The car's going to be checked out by Volvo to try and sort my continuing diesel particulate filter troubles.
When it is sorted, the grille will go in and it'll get chipped for low rpm torque.

[Floordford]

Ok so my Ultra Gauge is telling me im averaging 28mpg right now. Obviously its fluctuating but Im happy to be getting over 20. I just hope things are set correctly. I guess I can check it against when I fuel up.