like i said earlier in this thread, the Delco has a thicker canister, an improvement over the PF63E and i'm sure thicker than the Mobil1...they changed it because the PF63E canister was failing due to the high pressure oil pump....but go ahead and do what you want...i'm only trying to get the info out there
How high of an oil pressure are we talking here? I haven't heard of oil filters bursting or that 3.6s have high oil pressure (then again I can't find much info on oil pressure on the 3.6Ls). Even a relatively thin gauge can should be able to take a good amount of pressure. I would expect the seal to blow out well before the can.
btw, I run Mobile-1s on all my vehicles without issues. I measured the diameter of the Mobile1 filter on our 3.6L '21 Blazer, with about 5k miles on the filter, and its exactly the same diameter as an unused filter I have on my spare parts shelf. No bloating or deformation of any kind. So I think running a Mobile-1 is fine.
But in the end, run whatever filter makes you happy (assuming it is in spec for your motor). Its your ride after all. Just sayin'...