CM2250 File Help

[Phoenix6189]

Need some help with my cm2250. It's in a Volvo VNL 780 with eaton 13 speed auto, 3.55 gears. I run mostly 68 MPH at 1525 rpms. Motor runs 65 about 1450 rpm, 70 at 1600. I see mostly 6.3 to 6.8 and run light most of the time.
Would like someone to look at the tuning and see if anything can be done to increase fuel mileage. Egr tuneup just done all pressure sensors changed, baking DOC and DPF now, would like to get rid of SCR(it has been a financial nightmare). DPF and DOC, EGR system works great. Injectors and fuel pressure check out. Cleaned out Aftertreatment Diesel injector. Have data plate pics and ECM backup done.
Also can ecm mileage be changed? Truck ECM and Vehicle ODO has always been different.
Vehicle ODO reads 860633.8 and ECM says 859147.0      

Thank you Guys in advance.