F350 SD FX4 6.2 fuel economy with hard side TC?

[84FLH]

Wondering what kind of highway and local mileage guys are getting with 2008-2015 F350 SD 6.2 FX4 while carrying, say, Northern Lite or Lance 8 to 9 foot floor layout TC's ... versus popups like Alaskan 8-10 cabover or Outfitter's Apex 8.

Thanks in advance for all answers.

 

[84FLH]

Wondering what kind of highway and local mileage guys are getting with 2010-2015 F350 SD 6.2 FX4, 6 speed AT, 8' bed ... while carrying, say, Northern Lite or Lance 8 to 9 foot floor layout TC's ... versus popups like Alaskan 8-10 cabover or Outfitter's Apex 8.

Thanks in advance for all answers.

 

[IdaSHO]

2011 6.2, 6-speed. Factory 3:73s with 35" toyos.
We typically weigh in at 11-12k wet, and see 8MPG average. 10-12 MPG entirely (flat) highway.

 

[84FLH]

Thanks, Ken. This 28 page (!) thread about 6.2 gas mileage is the source of my question here. Posts are about 50/50 between towing mileage and non-towing mileage. Towing mpg is anywhere from 6 to 12, with most 8-10. Non-towing is mostly 12-13, with a few guys getting 14-15 by driving conservatively, using synthetic oils, and one or two guys claiming an intake filter called Airaid gave them another .75-1 mpg.

Real world gas mileage with the 6.2 - Ford Truck Enthusiasts Forums

6.2L V8 - Real world gas mileage with the 6.2 - Took my 2011 F-250 with 6.2 gas and 3.73 gear to The national farm mach.show in louisville Ky.this past weekend.Driving 70-75 mph average MPG was 12.4-12.7:'( if I kept it under 65 mph my average was 13.8:DMy truck is 4X4 SC with 5,000 miles on the...

www.ford-trucks.com

I'll be traveling with just myself and my dog and on my retirement incomes. 8-10 mpg to travel America for 6-12 months raised my eybrows! Would like to ask you:

~ How much better, if at all, do you think mpg would be with 4:10?

~ How much better, if at all, would mpg be with non-SD F350?

~ Do I really need a SD for a hard side that's 2200-2600 lbs dry? OTOH, I'd love a flatbed with storage boxes under and tucked in the side 'notches' of the camper, to carry good assortment of sockets, wrenches, ratchets, screwdrivers, impact gun, vise grips, jumper cables, 1/2 size floor jack; plus skis, boots, backpack gear, small charcoal grill, grilling tools, etc, etc. So maybe a SD would be best.

Thanks again. Always loved the build and build story.

 

[gator70]

I'm also looking at the fuel cost in retirement. I think the trick is, travel days should be limited to 2-3 days every two weeks. Stay longer in each place.