Traveling Pa, Rt 81, before PCM update w/o toad was 7.5 mpg, same roads WITH toad after PCM update was 8.2 mpg.
So, maybe it's a little better, once we travel on flatter roads we'll see how it does in comparison. Best flat roads w/o toad was 9 mpg.
They Ford guy said we may get a little better mileage after update, but then again...I take their info with a grain of salt.