Why buy DEF in a box?

Better product stability.
A few kw's set the bad Dec light from the pump stuff. Its supposed to be 31% urea or better .
The auto parts have a urea/ def checker for about $9 looks like the little antifreeze tester.
They drained old stuff filled up with boxed new stuff & went on.

 

I used to buy it by the box because my DEF tank is on the passenger side. I didn’t want to be that guy that swung in and went backwards through the fuel island because I’m sure somewhere along the line, someone would maybe follow like a lost puppy dog.

 

They like to use the empties for extra large piss bottles. I swear I've seen them laying on the side of the highway full of piss. That's just sad.

 

never bought boxed def and never will buy it... the best def is the fresh def at petro, pilot, ta, loves. high volume selling places...

 

I fill up my DEF tank when it’s half full or whenever it’s very cheap at the fuel pumps. DEF tanks, unlike diesel tanks, should be filled up when it’s half full, according to some manuals I’ve read. I’ve never had problems getting low on DEF. I think some drivers just forget to fill it up, so they carry DEF boxes in the truck. Others believe that DEF in boxes is better quality than at the pumps.

 

Yes, this is what I have in my truck. Cost $119.00

 

Think how long it takes to sell a tanker full at 5-7 gals at a time.

 

I've seen it freeze at the pumps in the PNW & every time it weakens it. Don't believe me get a tester & test it. 3 trucks had fueled at a major chain 2 in one state & 1 in another & all 3 had problems with bad def.