2017 6.2 MPG
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Cargo Master
Joined: Jan 2015
Posts: 2,824
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From: Boise
2017 6.2 MPG
I've been posting in other threads, but I will just post here from now on. Hopefully others will and we can see if there is any real mpg improvement on the new SD.
Truck: 250 CCSB 4x4 4.30 running 295/70/18 Michelin Defender LTX.
Last tank, 329.3 miles, 24.523 gallons = 13.44
This tank was coming home over the pass, driving around town for the 2nd half of the tank. 95% of time the hubs were locked, lots of miles in 4x4, considerable extra idling because it's been so dang cold here lately.
Truck: 250 CCSB 4x4 4.30 running 295/70/18 Michelin Defender LTX.
Last tank, 329.3 miles, 24.523 gallons = 13.44
This tank was coming home over the pass, driving around town for the 2nd half of the tank. 95% of time the hubs were locked, lots of miles in 4x4, considerable extra idling because it's been so dang cold here lately.
Mountain Pass
Joined: Nov 2016
Posts: 111
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raindesert-your truck has a 48gal tank doesn't it? I thought I'd read somewhere that all crew cab gas trucks get the larger tank for the 2017 models, but I could be mistaken.....
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More Turbo
Joined: Mar 2013
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only CC with LB get the large tank
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Cargo Master
Joined: Jan 2015
Posts: 2,824
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From: Boise
I have the 34. There is an issue and some threads talking about it in the 2017 section. My DTE alarm comes on, I can run it down to "0" miles until empty, and not even sqeeze in 30 gallons. Very annoying.
Mountain Pass
Joined: Jun 2016
Posts: 154
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I think that's just how Ford set them up, with a lot of reserve left after you hit zero. My '16 has a 40 gallon tank, but I can only put in 34 gallons when it's at 0 miles on the DTE. Maybe to make sure the fuel pump stays cool?
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Cargo Master
Joined: Jan 2015
Posts: 2,824
Likes: 39
From: Boise
Pretty darn cold here as of late, quite a bit of extra idle and/or warm up time. Just did my usual mostly town tank this time came it at 343/28.1 gal = 12.2 mpgs. I have usually been at 12.8. I can say that I am up 15% over my prior 6.2 with this new one.
Cross-Country
Joined: Jul 2016
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I am ready to take the plunge on a F250 CC SB w/4.30 gears and this thread caught my attention. I have to decide whether to go 4wd or 2wd. I like the utility factor of 4wd, but the extra fuel economy with a 2wd might also be attractive. We don't camp off-road so 2wd with a locking rear differential would likely be fine, but be a limiting factor when unhooked for sight-seeing in remote areas on unimproved roads. I'll be pulling up to a 9500 lb. bumper pull RV and an extra 2 mpg would give me another 70 miles or so of range on those long stretches of highway.
So, a lot hinges on a comparisons between towing a TT with 2wd vs. 4wd.
So, a lot hinges on a comparisons between towing a TT with 2wd vs. 4wd.