I have a problematic 2015 ecodiesel Grand Cherokee. Been thru both recalls. Trying to figure out the best way to keep from getting stranded by 100% dpf fill. Looked at the direction for the AlphaOBD, seems complicated. Cetene boosters worth a shot? DPF fuel additives? Been thru one limp mode. No fun. Nearly had another while up a dirt road in Great Basin National Park and of course the computer told me to drive a freeway speeds. Ugh. Any ideas?