Is the DIC (ie, mpg. and DTE)accurate when you use the bully dog pup on the LLY? How about speedo/odo?

The speedo should be accurate if you set the tire size correctly. As far as the DIC I never think that thing was right to begin with... I would do hand calculations just to be sure..

The DIC is off for mileage but i think the odometer is correct and the speedo is too .

SPEEDO IS DEAD ON ACCURATE IF YOU MEASURE WRIGHT

Im assuming odometer is too then correct? So then that means that i would not have to hand calculate by multiplying by 3.9 % to check fuel mileage right?