very disturbed as i am not gettin much better than 9 mpg
. i got 9.25 pulling a 12k lb
5th wheel in the mtn.s with foot in it.
I gotta agree with Dave on this. 12K on a 450, an E-series at that, is not going to get very good mileage. And then add mountains, a heavy foot, and a 6.0L, I'd be extremely surprised if it stayed in OD
even with a headwind, much less a good grade to climb. The only thing you didn't do wrong (from a MPG
point of view) was use a diesel.
not doing much better, at all, empty in flat lands.
From all I hear, that's normal for a high geared truck/van.
didn't expect great mileage but sheeez!
What were you expecting? In the city I get 10-12, and that's with never being above 40mph. Highway, it's more like 17-20.
Dave does get like a bazilion MPG
, but not when he tows.
anything to check out?
--Re-think your driving style. The engine doesn't have to run wide open to tow. Just enough to be able to spool the turbo in OD
. I know you're a 6.oh-no, so a VGT makes finding that spot harder. For me, in my OBS
, that means about 1800-2000 rpm I can build quite a bit of boost without down-shifting. You want to be at as low an RPM you can be and still create enough heat to make boost when you need it.
--Make sure the 4x4
isn't engaged. I don't know what hubs are on the truck, but make sure the aren't sticking locked.
--Swap gears to 3.55 or 3.73. Yes, you loose acceleration and the capability to fly up mountains, but you improve mpg
--Get rid of 4x4
. A 2wd truck is lighter and has less friction than a 4x4
--Make sure the trailer brakes aren't dragging.
--Make sure the truck brakes aren't dragging.
--Lower the van, put on super skinny tires, add an air dam, remove the mirrors and replace with tiny cameras, create a fairing to smooth the transition from the van to the trailer, lower the trailer, put super skinny tires on the trailer, add wheel covers to the truck and trailer, add a sloped back to the trailer, run the tires at MAX psi
, put a manual transmission in for mbetter control of shifting, remove all external protuberances from the truck and trailer (handles, antennas, running boards), and always drive with a tailwind.