Only getting 17mpg

[No15]

Based on the comments in this forum, this seems to be the math...
FE Style roof rack = -4 MPG
BFG All Terrain Tires = -2 MPG

Based on that math, if you can get 21 MPG on a LC LC, you add the FE roof rack that drops to 17 MPG. Add BFG KO2 AT Tires and it drops again to 15 MPG.

Anybody with a FE getting more than 17 MPG?

I have an fe with continental at's. Here is my milage at slightly over 2k now