Torque Converter?

[ticopowell]

From what I have seen so far I get about 13 mpg's no matter what kind of driving I do, I do assume I idle a little more than most people, so I know that can have an effect, but the average mpg's according to the gryphon fluctuate so much that i just use it as a guesstimate of how im doing, and usually it is 2-3 mpg's higher than what I am getting. Again its been only 2 months since I have had the truck so ill see what happens over summer before I do anything about it.