Quote:
Originally Posted by James R Moneypenny
Dear friend:
I had exactly the same problem with my exhaust system - put some "old" DEF in and had no idea about def crystals and contaminants. yes, I'd like to know what brands are recommended. Spent ~ $850 to replace parts/labor.
James R Moneypenny
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Wherever you buy your DEF as long as it's marked "approved by API" it shouldn't matter if it's blue, green, polka dotted, or clear as most of it is, it shouldn't be harmful to your system.
If using DEF from truck stops I'd think it would be safe as there are hundreds of trucks daily using it & would surely hear of lawsuits out the kazoo if selling bad DEF to truckers. I'd also suspect it's tested periodically just as the fuel & the pumps are by licsensed third party technicians.