Just done an oil change after 5500 ish miles as is my want.     Last time I carefully, as usual, torqued the filter holder.   This time, trying to undo it, the whole caboodle started turning!   As I was lying on my back underneath this heavy beast of a car, I turned it back to where it had been and didn't change the filter (Well, I WAS tired & hungover, and didn't know what was going to happen!)  Does anyone know if the whole unit will come off and be separable once it's off?    (Difficult in that position to see if there's room to take the whole thing off, and how sturdy the casing is!)

Ta, I had a feeling as I was lying there that it wouldn't be easy!   All I need is a high-lift and four arms.   Ain't it a pain when an easy routine job suddenly goes tits-up!