I am just curious...where you guys have the TC lock up at and what is your MPG. I see all of these decent MPG's being posted and I only see 10-12 with easy driving and wondering if having my TC lockup at 45 is the reason. I do understand that having my lift and 37's does not help things, but would not mind having a bit more MPG. I have it set to firm shifting also and have run the tuner on all settings with the same results. Not a big deal since I did not buy the truck for the MPG, but wouldn't mind getting a bit more. Thanks in advance!!