DEF FLUID
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Senior User
Joined: May 2015
Posts: 183
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From: coldwater Michigan
DEF FLUID
Here's a little pointer if ya wanna save money.
DEF fluid is basically ammonia.
So .... If you use one gallon of ammonia to 1-1/2 gallons of distilled water mix it's the same thing.
Never had any problems with def contamination 👍
It will save you money. Dollar tree for the ammonia and a grocery store usually sells distilled water around 88 cents a gallon which would cost around $2.70 as opposed to $9-$16 at the truck stops or farm stores
DEF fluid is basically ammonia.
So .... If you use one gallon of ammonia to 1-1/2 gallons of distilled water mix it's the same thing.
Never had any problems with def contamination 👍
It will save you money. Dollar tree for the ammonia and a grocery store usually sells distilled water around 88 cents a gallon which would cost around $2.70 as opposed to $9-$16 at the truck stops or farm stores
Last edited by iwsmitty25; Nov 17, 2015 at 06:52 AM. Reason: additional information
Logistics Pro
Joined: Mar 2005
Posts: 3,527
Likes: 2,490
From: West Michigan
I'm all about saving money, but that one time where I dont get it right, would be costly. A 2.5 gallon jug here is $14. I know its cheaper if you have a station with a DEF pump. For something I buy about every 5 months, I'm not going to cut corners.
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Senior User
Joined: May 2015
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From: coldwater Michigan
def fluid
I've had no problem with doing that on the def side and I use it about twice a month
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
Here's a little pointer if ya wanna save money.
DEF fluid is basically ammonia.
So .... If you use one gallon of ammonia to 1-1/2 gallons of distilled water mix it's the same thing.
Never had any problems with def contamination 👍
It will save you money. Dollar tree for the ammonia and a grocery store usually sells distilled water around 88 cents a gallon which would cost around $2.70 as opposed to $9-$16 at the truck stops or farm stores
DEF fluid is basically ammonia.
So .... If you use one gallon of ammonia to 1-1/2 gallons of distilled water mix it's the same thing.
Never had any problems with def contamination 👍
It will save you money. Dollar tree for the ammonia and a grocery store usually sells distilled water around 88 cents a gallon which would cost around $2.70 as opposed to $9-$16 at the truck stops or farm stores
DEF is actually made of 32% urea and 68% de-ionized water. So right off the bat it's not distilled water, it's de-ionized.
Second, urea is not straight ammonia. It is synthesized from a chemical process of ammonia and carbon dioxide.
I'm all for saving money, but this is not one of them.
Logistics Pro
Joined: Mar 2005
Posts: 3,527
Likes: 2,490
From: West Michigan
these new trucks/powertrains are not like those of old where adding tranny fluid to the oil to quiet lifters, and burning used oil as fuel, or adding some gas/kerosene to the diesel in the wintertime, etc are things that used to work in the old days. These new machines are operating a much smaller tolerances, and as you know failures add up quickly.
Prolocutor
Joined: Jan 2009
Posts: 13,618
Likes: 1,245
From: Western MA
I use the Supertech from Wally World. $7.88 for 2.5 gallons. The pumps at the truck stops are a good deal but every one I've tried locks the pump with the nozzle fully inserted and splashes out if I pull the nozzle out far enough to get the pump to work.
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Hotshot
Joined: Jul 2005
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From: Middle Tn.
I appreciate the tip but, DEF is probably the cheapest thing you'll ever buy for your truck and the potential risk is not worth it.
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Joined: May 2013
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Ditto. After spending 49K on my truck, I'll not risk it for a few dollars savings.
Hotshot
Joined: Oct 2006
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From: Texas
Unfortunately, this will not work and owners should not try this because it will result in DEF system failure.
DEF is actually made of 32% urea and 68% de-ionized water. So right off the bat it's not distilled water, it's de-ionized.
Second, urea is not straight ammonia. It is synthesized from a chemical process of ammonia and carbon dioxide.
I'm all for saving money, but this is not one of them.
DEF is actually made of 32% urea and 68% de-ionized water. So right off the bat it's not distilled water, it's de-ionized.
Second, urea is not straight ammonia. It is synthesized from a chemical process of ammonia and carbon dioxide.
I'm all for saving money, but this is not one of them.
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
I used the Wal Mart DEF on a recent trip from Alabama to Washington State and back without any problems. Was a total of 7800 miles round trip.
Will continue to use Wally World DEF. Each jug comes with a new spout.
Will continue to use Wally World DEF. Each jug comes with a new spout.
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Senior User
Joined: May 2015
Posts: 183
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From: coldwater Michigan
def
I didn't know they sold it. But I had bad fuel from Murphy USA in Effingham Illinois... Insurance covers it but it's $9K to repair it 😲... I might go back to the def fluid. Never had any problems with the distilled water and ammonia mix though for 20K miles
