Originally Posted by MeNotn2BS
I have a 2000 F-250 4x4 with a 7.3 and automatic tranny. I have installed an AEM Cold Air Intake, MBRP 4" Turbo Back Exhaust and an Edge Products Evolution Programmer. I am only getting around 12 miles per gallon. On a recent trip from Denver to California and back pulling an enclosed motorcycle trailer, about 3000 lbs. at the most I still only averaged 12 miles per gallon. What is the deal ???? PLEASE HELP !!!
I would say, pulling an enclosed trailer (wind resistance), at elevation and through the mountains(Denver to Cali.), and using winter blend fuel (I lose 1-1.5 mpg in the winter), I would say you are not too far off of normal mpg's.
Try changing your fuel filter and try some fuel additive.