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?
Forum Discussion
Fire Instructor wrote:The DEF sold in truckstops is made from urine collected at animal shelters - stick with the Peak.
Agreed. DEF is DEF. If you can get to a truckstop where they pump it, it's usually MUCH less expensive that way, than boxed.....
