joe_pumaExplorerMar 25, 2016DEFTime to add DEF to my duramax, anyone ever use the "Supertech" DEF from Wal mart? I usually use Peak Blue DEF. Any thoughts?
jalichtyExplorerMar 25, 2016Is there a Buffalo herd somewhere where they catch that urine to put in the DEF solution and do they roller-skate in the herd to collect it.
