DEF

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Wayjo

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Just wondering, what brand DEF do you all use? My truck is the 2021 3.0 so I was wondering if it matters. I know years ago GM tried to tell everyone they needed to use specific DEF or it would damage the system. Thanks
 
DEF is DEF.. don't fall for the best brand or the new "Platinum" stuff. I run BLUE DEF from Sam's Club as it's convenient for me.. but a lot guys run it from the truck stop as it's likely fresh as it's a high volume stations/product.
 
Wally world has the best price always fresh because it sell put so fast
 
Thanks for the replies. Exactly what I thought, but guess I just needed to hear it from others to be sure.
 
Ya wally mart stuff works good I’ve also ran the stuff from tractor supply and rural king however I picked up a tester and sample every jug I dump in my truck just to make sure your getting 30% pee in every jug the tester was like $20 that’s cheap insurance.
 
Autozone’s turnover is high as well. Sometimes, maybe most times, I go there they are out.
 
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