Just wanted to let everyone that assisted me with their responses on my "P0442" check engine light code that I believe it is now fixed. You were all correct on the "J" hose replacement and thus far the CEL is still off. There was a splitting of the old hose right near the one end...

June, thanks for your response. I should have done this first but I just called my local Volvo dealer and they gave me this part number (#30741424) as the correct fluid to fill up with. This looks to be the "blue-green" stuff you mentioned.

I did what "volvolugnut" suggested and took it around the corner to my local Euro mechanic. He dismounted the tire, wirebrushed the inside and put a small bead of some stuff along the rim edge before remounting. $33 later all is well.

Thx Neil!