Originally Posted by Clark Craven
While working as a Ford Senior Master Technician, I regularly counseled people on their "perception" of fuel economy. All sorts of factors will have an affect on economy, temperature, ambient, engine and trans, Winds, either headwinds or tailwinds, elevation, grades, weight and configuration of towed load and many others. That said, if you drive in a careful manner, easy acceleration from stops, slow deceleration to stop signs and traffic signals, set tire pressures to manufacturers specifications, never to maximum listed on the tires, check tires when cold and ensure all routine vehicle maintenance is performed. Shut engine off when at stop over a couple of minutes. All these and more common sense tricks will garner you the best overall fuel economy. My 2012 F150, SCREW with 3.5 litre Ecoboost, w 3.55 gears, regularly returned figures of 10 - 11.5 when towing our 28 foot 7800lb TT. When not towing, my overall average is 20.4. I'm happy with those returns and chuckle when I hear someone talking about 18 - 20 when towing.
Right on Clark. You clearly said, "regularly returns" probably meaning the best regular returns. No one ever posts the worst. Plus many don't know how to figure mpg, some guess at it, and still others are just plain liars. Then readers get the impression that if they buy this or that truck, this is what they will get. Aren't we supposed to be helping fellow FR owners? Keep those exaggerated stories for around the campfire or after a fishing trip.
In our RV world, mpg and truck stories are much like the ones fishermen tell.
What really puzzles me is why people buying travel trailers (or motor homes) with the aerodynamics of a very large brick give a hoot mpg. I don't get it.
Showing a picture of the EVIC (or whatever Ford calls it) means absolutely nothing. I could take a photo showing my Ram 2500 getting 22 mpg, and it will do it, slowed way down, and of course not towing anything. If you want to be believed, get a scan gauge and show actual results.
Another thing that is done to "enhance" the story and that many people do is to add several thousand pounds to the trailer.
A friend driving his Dad's 2014 EB with max tow, max haul, pulled a brand new 7000# (empty) XLR 29HFS from OH to WA and averaged 6.5 mpg for the trip; with a worst tank average of 4.6 mpg... at which point he took the time to get to a Ford dealer because he thought there was something wrong. The dealer told him 6 to 7 mpg pulling 7000# toyhauler was to be expected. He called other dealers and they told him the same. The salesman had nearly doubled his claim when his Dad bought the truck. Surprise, surprise! By the way due to too much sway, he had to keep his speed 65 mph or below.
His old Quadrasteer GMC, according to him, pulls it better (now loaded) and gets better mpg that the EB got towing it empty and it wasn't around a campfire and he hadn't been drinking.
Thats the truth and I'm sticking to it.