wow, i don't know what to say. I guess I should just start
1. DoD is available on the NBS trucks, which means '07 and up. The '08 and '09 trucks and suv's have it as well
2. Timing is off everywhere in the 4cyl DoD mode, worse than it is in the 8cyl mode. You can add as much as 5 degrees, and even more in the high octane mode before you start running into the detonation cycle.
3. Without knowing anything about the DoD system, how can you make the claim that it is impossible to get good mileage? That is interesting. If you think you can't add timing, it means you are not, and therefore are not seeing the benefits. It is evident you haven't adequately tuned a DoD vehicle, nor have you looked at my posted map and compared it to a stock map. I really suggest you do so before making comments regarding my integrity on here. I have posted my tune and had several people PM me, thanking me for helping them improve their mileage.
Don't believe me? I really couldn't care less. But don't go around providing wrong information, people will take it as the gospel truth.