def

Hello all fellow super duty enthusiasts, I was wondering who else has a GMC, leaking at def filler neck to ground. For now, I siphoned out of box with 3/8 poly tube down inside neck to bottom, and it bypassed maybe a split in the hose ...?? I ordered a 84646525 AC Delco Diesel Emissions...

After owning my 2015 6.7L F-250 for 5 years, I made a big mistake just now. I got distracted and put a gallon of DEF in my fuel tank. Fortunately, I realized my mistake before I cranked the truck. It is sitting in my garage and I am about to drain the tank. Is draining the tank sufficient? Is...