@ak_cowboy I have an 05 EB with digital read out in the middle of the cluster. It went up some but I'm still only reading 7.9 mpg. Not good at all!
Do you have the steering wheel controls? You should be able to hit the reset button on the highway and have it up high again. Otherwise it'll just take a while to get up to the average you had before. I've only messed with the xl new trucks BTW, but That's How they work sent from my igloo
Because you idle a lot Carl. The Eb will increase It's mpg with more highway driving, they're thirsty in town. sent from my igloo