Notices
6.7L Power Stroke Diesel 2011-current Ford Powerstroke 6.7 L turbo diesel engine

DEF

Thread Tools
 
Search this Thread
 
Old Dec 16, 2011 | 01:41 AM
  #1  
1L243's Avatar
1L243
Thread Starter
|
Laughing Gas
20 Year Member
Photogenic
Joined: Aug 2003
Posts: 836
Likes: 9
DEF

Ok I have been finally getting to the point where I can start thinking about a new truck and then I came across post on the DEF required... What is DEF?
 
Reply
Old Dec 16, 2011 | 03:05 AM
  #2  
khadma's Avatar
khadma
Carpenter Local 745
15 Year Member
Photogenic
Photoriffic
Joined: Apr 2006
Posts: 5,794
Likes: 11
From: on da beach
Club FTE Silver Member

http://media.ford.com/images/10031/S...rtreatment.pdf

Take a look.
 
Reply
Old Dec 16, 2011 | 05:27 PM
  #3  
Dim Sum's Avatar
Dim Sum
Fleet Mechanic
10 Year Member
Liked
Loved
Community Favorite
Joined: Jun 2011
Posts: 1,865
Likes: 34
From: Annandale, VA
Its a urea solution that is used in the exhaust after treatment to convert the NOx into less harmful N2 and O2.

Generally we are seeing about 1-2 gallons per thousand miles of driving. The stuff can range for about 3 bucks a gallon at big truck stops to $10 bucks for 2.5 gallons at Walmart.

In today's diesel technology, urea is a good thing as it lets manufacturers run hotter cylinder temperatures which mean a leaner burn. Leaner burns mean better FE. As well, Ford is able to run less EGR (exhaust gas recirculation) and that is generally a good thing.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BII Plow Truck
General Diesel Discussion
6
Nov 10, 2016 03:41 PM
rob17
6.7L Power Stroke Diesel
12
Jan 29, 2015 01:21 PM
Shoo12
6.4L Power Stroke Diesel
16
Jan 13, 2014 12:55 PM
parkland
1999 - 2016 Super Duty
14
Feb 14, 2012 10:00 PM
Jonboy
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
4
Sep 8, 2005 06:12 AM




All times are GMT -5. The time now is 10:19 AM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE