DEF use
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Logistics Pro
Joined: Jan 2013
Posts: 3,778
Likes: 153
DEF use
5545 mi, have added 7.5 gallons of DEF.
Excessive, normal, will slow as I get more miles on it.
About 60+% of the miles on the truck are towing my 5th wheel. I generally drive about 65 on open Interstate, but drive with traffic (70-75) if I am slowing down the traffic.
Excessive, normal, will slow as I get more miles on it.
About 60+% of the miles on the truck are towing my 5th wheel. I generally drive about 65 on open Interstate, but drive with traffic (70-75) if I am slowing down the traffic.
Mountain Pass
Joined: Oct 2014
Posts: 245
Likes: 2
From: South Mississippi
I thought the DEF tank only held 7 gallons??
Cargo Master
Joined: Dec 2003
Posts: 2,298
Likes: 2,057
From: Central MO
He didn't necessarily add all 7.5 gallons at one time...
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Hotshot
Joined: Apr 2013
Posts: 10,121
Likes: 657
From: NH
I don't tow in the winter other than the occasional snowmobile trip. Used 5.5 gallons in 5,000 miles. I'd say you're very much in the normal range. I will say I believe these trucks use a bit more than the previous generation. My 2016 would go 5,000 miles on its 5-gallon tank, including summer towing.
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Logistics Pro
Joined: Jan 2013
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According to Ford its 7.5 Extended Range: 2017 Ford Super Duty Long-box Crew Cab Carries More Fuel - The Fast Lane Truck
Correct, I add 2.5 gal at a time
Thanks and yes I think you are correct on previous generation going a bit further, my '15 would need an add right at oil change time and I was hauling heavy in that rig, while now I tow.
Correct, I add 2.5 gal at a time
I don't tow in the winter other than the occasional snowmobile trip. Used 5.5 gallons in 5,000 miles. I'd say you're very much in the normal range. I will say I believe these trucks use a bit more than the previous generation. My 2016 would go 5,000 miles on its 5-gallon tank, including summer towing.
Cargo Master
Joined: May 2002
Posts: 2,530
Likes: 7
From: Montana
I have a little less than 1/4 tank of DEF left, and I am closing in on 7300 miles on my truck.
I need to find some cheaper DEF out there. I just paid $9.99 for 2.5 gallons from Napa here in Spokane.
I need to find some cheaper DEF out there. I just paid $9.99 for 2.5 gallons from Napa here in Spokane.
Posting Guru
Joined: Jan 2017
Posts: 1,069
Likes: 9
From: Finger Lakes, NY
Bulk dispensing at truck stops can be much less, but I'm kinda weary of those.
Cargo Master
Joined: May 2002
Posts: 2,530
Likes: 7
From: Montana
Good to know, thanks! my first DEF truck
Posting Guru
Joined: Jan 2017
Posts: 1,069
Likes: 9
From: Finger Lakes, NY
In emergencies where you can't find it (usually there's a Wally everywhere tho, and sometimes they're NOT the cheapest!) don't forget the likes of in-town hardware stores like True Value. They usually are ~$10.99 on the 'Blue DEF' branded jugs as well.
I see WallyWorld is currently $11.97
I went into limp mode before on another make diesel, not fun when your pulling and on a tight schedule. So, don't go limp!
I see WallyWorld is currently $11.97
I went into limp mode before on another make diesel, not fun when your pulling and on a tight schedule. So, don't go limp!
Thread Starter
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Logistics Pro
Joined: Jan 2013
Posts: 3,778
Likes: 153
In emergencies where you can't find it (usually there's a Wally everywhere tho, and sometimes they're NOT the cheapest!) don't forget the likes of in-town hardware stores like True Value. They usually are ~$10.99 on the 'Blue DEF' branded jugs as well.
I see WallyWorld is currently $11.97
I went into limp mode before on another make diesel, not fun when your pulling and on a tight schedule. So, don't go limp!
I see WallyWorld is currently $11.97
I went into limp mode before on another make diesel, not fun when your pulling and on a tight schedule. So, don't go limp!
Hotshot
Joined: Nov 2013
Posts: 10,107
Likes: 96
From: Hempstead, TX
Don, the new Buc-ee's here are coming with DEF at the islands. Perhaps as the ones closer to you are renovated, you will have access there as well. The one near me just expanded by adding a new island with DEF (and Diesel) at the pumps, which they sell for $2.50/gallon and it is in underground tanks, rather than above ground tanks or totes.