I am from Marble Falls, Tx and I started running UATF in my 7.3L a few months ago, and I am getting alot of smoke. I would like to ask you a few questions on how you run and mix your ATF fuel setup. My number is 512.417.4002, and do you mix any diesel with your ATF, or do you run straight ATF? I do not have a DP-Tuner, but it sounds like I might need to get one. Thanks-Keith.