It's incredible that you're getting 23mpg as it is! What did you do to that thing?

It could be different with the trucks. When I tune mine, i get some of the gauges sweeping back and forth with some dinging. I also get the stabilitrac turning off or asking me to service it, service trailer brake controller and maybe some other things. All normal I would guess.

I sure hope so. This TCM tuning is getting old...fast!

Donation sent Grumpy. The program made adjusting my LTFTs a breeze and I'm sure it has helped many others out there too.

I'm not sure what to suggest about the whole website/cost thing. Definitely not an expert in the field. Hopefully you can reach some resolution.