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D.E.F Fluid

WalMart DEF - its probably rebranded Peak Blue DEF :D
 
What brands have an actual date of expiration on the box? Can't believe the government let the manufacturers of the stuff put a code only readable in ancient Eqyptian on the box. Especially given the storage requirements.
 
BigHorn3500 said:
I'm curious is there a difference in def fluids. I know the shelf life is two years, There are so many different brands,The guy I purchased my truck from always usded Peak Blue DEF, wich averages around twenty five dollars for 2.5 Gal. Yesterday at Running's they had a brand called blue def for 8 dollars for 2.5 gal. I don't mind spending more for the Peak brand but if there's no difference I wouldn't.
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DEF = DEF

I prefer to buy DEF at the pump. Cost effective and easy to fill but not overfill.

The shelf life is only 2 years when the temp is less 86°F. It get much shorter as the temp increases.
 
Just a few places make it and put a bunch of different labels on it . Buy it where you can get the best price possible .
 
RichM752 said:
Costco a few days ago.

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Picked one of these up a my local costco today, I looked at several of the boxes and I couldn't see, and cant find anywhere on my box the Date or Production code they used to have? Any Idea where to look, I usually like to figure out the production date before I buy, figured "whatever" for this time.
 
jeffmcpa said:
Picked one of these up a my local costco today, I looked at several of the boxes and I couldn't see, and cant find anywhere on my box the Date or Production code they used to have? Any Idea where to look, I usually like to figure out the production date before I buy, figured "whatever" for this time.
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Below is an older photos of a code date on Blue DEF or on YouTube
 

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My buddy just sold his GMC diesel and has several "boxes" of Blue DEF he said I could have. They're about a year old now, maybe even 15 months, and have been stored in his California garage-- which is to say, its hot in there. Is this stuff gonna be any good? Should I tell him no thanks?
 
BTW..... I always giggle a little bit when I hear "DEF fluid"...... thats literally saying "diesel exhaust fluid fluid." Kinda like when people say "DSL lips". LOL
 
CdnHO said:
What brands have an actual date of expiration on the box? Can't believe the government let the manufacturers of the stuff put a code only readable in ancient Eqyptian on the box. Especially given the storage requirements.
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I still can’t believe we have to use this stuff.
 
It's urea in water. It's like trying to find a premium brand of sugar water.

Our town has a conveniently located pump at a fleet fueling station. It's $3.50 a gallon and I don't have to deal with the jugs/bottles.
 
Bull Creek said:
All is good at the Rocky Mountain region DEF pumps except for the 6 to 7 months of winter..
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My local pump, the hose reel and nozzle are in a heated cabinet behind a spring loaded door. Your station bought the wrong pumps. If it's too cold outside for the pump, wouldn't one also expect the tank on the truck to freeze overnight?

Then again, we don't camp in the freezy months. Last winter I bought DEF in November, used some on trips, had a partial tank all winter, and refilled in March when we were ready to travel again. I only treated my 50gal tank of fuel with antigel...once.

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Bull Creek said:
I use Peak Blue DEF or the NAPA brand which is the Peak Blue DEF in another box. Currently on sale at $13 in Laramie, Wyoming, so I purchased one to keep two on hand in the truck bed. It's just peace of mind to use what I know has worked in the past with no issues when you have to drive 47 miles one way for auto parts. Otherwise, it's supposed to be all DEF compliant.
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How do you read the code?I just bought it they did say it was packaged for NAPA by Peak Blue Def
 

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ErikTheRed said:
My buddy just sold his GMC diesel and has several "boxes" of Blue DEF he said I could have. They're about a year old now, maybe even 15 months, and have been stored in his California garage-- which is to say, its hot in there. Is this stuff gonna be any good? Should I tell him no thanks?
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With how cheap fresh DEF is, and how expensive DEF systems are to fix, I’d skip it.
 
johnmyster said:
My local pump, the hose reel and nozzle are in a heated cabinet behind a spring loaded door. Your station bought the wrong pumps. If it's too cold outside for the pump, wouldn't one also expect the tank on the truck to freeze overnight?

Then again, we don't camp in the freezy months. Last winter I bought DEF in November, used some on trips, had a partial tank all winter, and refilled in March when we were ready to travel again. I only treated my 50gal tank of fuel with antigel...once.

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The tanks on the trucks do freeze overnight, that’s why they have heating elements.
 
Trash Panda said:
The tanks on the trucks do freeze overnight, that’s why they have heating elements.
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Exactly, so that they can eventually thaw themselves out. (How long will it take to thaw five gallons of DEF with a 180 watt heater? Anybody want to guess heat of fusion of DEF?) Just like my local DEF pump, also has a heater.

My point was: if the pump is frozen, so is the spare box you keep in your truck and so is your tank, so your truck isn't exactly using much of the stuff.
 
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