joe_puma
Mar 25, 2016Explorer
DEF
Time to add DEF to my duramax, anyone ever use the "Supertech" DEF from Wal mart? I usually use Peak Blue DEF. Any thoughts?
Fire Instructor wrote:old guy wrote:
so urinating in the def tank is not the proper proportions right?
No, because if you drank Coors Light the night before, it would be too watered down.....