OK, last week trip from South Texas to South New Mexico fully load (ie saddle bags, Tank bag, Trunk, Tail bag and Camelback) I got 46 mpg doing 75mph from South Texas to El Paso. I get to El Paso, temp drops 15 - 20 degrees, 50 mpg doing 75mph going to Deming, NM. I use 87 octane in South...