DEF usage
Elder User
Joined: Dec 2009
Posts: 744
Likes: 0
Do you know if it can be used at any dealership....I recieved one from the dealership I bought my truck, but it's 400 miles away from me.
Fleet Mechanic
Joined: Feb 2010
Posts: 1,446
Likes: 28
From: Hot Springs
Yes you can get your DEF tank filled free the 1st time at any dealer..
Elder User
Joined: Mar 2007
Posts: 879
Likes: 0
From: at the truck pulls
Does anybody know if there's a bypass/mod to quit using DEF? I know that soon there's gotta be, but I'm really thinking about buying the 6.7 tonight, but it's going to add several hundred bucks a year to my fuel bill.
Senior User
Joined: Dec 2006
Posts: 125
Likes: 0
I am also wondering on the def delete, I am really interested in the 6.7 but with the skyrocketing cost of maintenance, I think I am goin to wait and see what happens, all the components in the urea system ford has installed kind of scares me, surely someone will come up with an idea, also I hear the urea is extremely corrosive and I would hate to get a leak and rot my chassis out from under my nice new truck, I am just going to see what happens, I sure hope these trucks are the best ever made, it sure seems to be going that way, they are some of the best looking trucks I have seen since the 56 f100
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
New User
Joined: Jul 2010
Posts: 10
Likes: 0
-snip-
Urea serves an important role in the metabolism of nitrogen-containing compounds by animals and is the main nitrogen-containing substance in the urine of mammals. Being solid, colourless, odorless (although the ammonia which it gives off in the presence of water, including water vapor in the air, has a strong odor), neither acidic nor alkaline, highly soluble in water, and relatively non-toxic, urea is widely used in fertilizers as a convenient source of nitrogen.
-snip-
Junior User
Joined: May 2010
Posts: 51
Likes: 0
From: Move around the USA
I was told by my salesman that if you get DEF on the paint it will possible damage the paint. Said Ford recommends getting it topped off by a Ford dealership. Of course I will do it myself, just be careful
Postmaster
Joined: Apr 2009
Posts: 3,839
Likes: 2
I did the math for the Dodge guys over at RVnet. Kinda hurt their feelings, they thought I was calling them stupid... At 7500 miles a refill and $3 a gallon at Pilot it comes to a whopping 3 cents a gallon added to your fuel costs. After driving mine for 2500 miles, I think it may be more like 4 or 5. Thats a lot of nickels to make even a hundred dollars.
Post Fiend
Joined: Apr 2004
Posts: 5,158
Likes: 35
From: North of Salt Lake City
I did the math for the Dodge guys over at RVnet. Kinda hurt their feelings, they thought I was calling them stupid... At 7500 miles a refill and $3 a gallon at Pilot it comes to a whopping 3 cents a gallon added to your fuel costs. After driving mine for 2500 miles, I think it may be more like 4 or 5. Thats a lot of nickels to make even a hundred dollars.
Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
I have talked over the 6.7 and maybe getting one with our business folks, seems to us that at 5 gallons for 5000 towing miles would approx. make a 1 cent/mile cost. Cost of tires if you assume 50,000 miles and $1500 for 4 tires is about 33 cents/mile.
Post Fiend
Joined: Apr 2004
Posts: 5,158
Likes: 35
From: North of Salt Lake City
Dudes... Let's take a closer look at the math. $1,500 worth of tires that go 50,000 miles = 3 cents per mile. DEF that costs $3/gallon and takes 5 gallons over 5000 miles = one third of a cent per mile. So... Tires = 3 cents per mile and DEF = 3 miles per penny. 
Another way of looking at it is tires cost 10 times as much per mile than DEF, or, DEF is one tenth the cost of tires...
Another way of looking at it is tires cost 10 times as much per mile than DEF, or, DEF is one tenth the cost of tires...