Def fluid
Have a 2011 Duramax. Have had a sensor problem. Dealer says the def from Walmart is giving some problems. Any thoughts.
Forum Discussion
I agree that DEF is universal. But I have run into DEF which has long passed its expiration date. And the clerk had no idea that there is an expiration date.
so I would advise that it is ok to buy DEF from Walmart as long as the expiration date has not come and gone.
so I would advise that it is ok to buy DEF from Walmart as long as the expiration date has not come and gone.
