Mpg drop isx15

[SquareOne]

Def an older topic, but pertains to my question.....at what point in the year do you seasoned guys begin to see the fuel MPG return? I've combed over my truck to make sure everything's on point, but still seem to be about .4-.6 off on mpg. Throughout the summer months, I would consistently see low 9's, but as of lately, I just can't seem to break out of the mid 8's...

- Don't get me wrong, I'm happy with the current mileage of this 2350, I just know that it's capable of more. We've had a VERY wet year so far, so that makes what I haul very heavy, and we have the occasional cold flash (although not near as bad as what many of you deal with daily), but I'm still closely monitoring those mpg's waiting on their return.