Had to wake up the 5.3L a little for some more umph when pulling the new camper trailer. This woke it up
A LOT!!!
BEst of all, I actually gained about 1-2 mpg on the highway. Around town is still about the same. I haven't pulled the trailer for a long distance yet to get a feel for milage. But I will put it to the test over Memorial Day weekend when we visit our property in South Dakota
