Jeep Ecodiesel Glow Plug

It was moving bit by bit then it felt like it loosen up and started to unscrew more easily.
Jeep ecodiesel glow plug. Reading on this forum about the glow plugs not being able to be removed from the 3 0l ecodiesel makes me believe this is going to be a major problem going forward. 170 000kms i think the glow plugs are original. Now i m not one for patience expecially when it comes to a vehicle i haven t even owned for a year. It was really tight to unscrew.
Glow plugs are a maintenance item that is going to need to be replaced on all engines at some time in the future. This allows carbon to get packed in around the barrel. Now all i saw for google results is broke off glow plugs in sprinters and cabs coming off for head replacement. The ecodiesel started just fine this morning but that must have been the last straw for one of the glow plugs.
Nevertheless they called next day to let me know that they did not have a glow plug for ecodiesel in stock and would need to order it and they will get the jeep back to me during the memorial day weekend. Over time the plugs become glued into place. The aluminum head 4 valve diesels are notorious for seizing glow plugs. Last one i did drivers side closest to the fire wall is stuck.
I used penetraing fluid warmed engine up etc. First 5 glow plugs came out just fine. Apparently the plugs don t seat properly at the combustion chamber end. Hints why i got a newer dodge.
So i stop by the local parts store to check the codes after work.