[3.2 CAB]

+1 on what sig_a stated. The oil return tubes should not be really easily turned or rotated. That would indicate loose, torn, cracked, or some type of damage to the o-rings on the return tubes. Are all of your return tubes the same? Or do you have a mix of factory one piece types and replacement two piece types? The reason I ask, if you already have the two piece style, you should be fine if you just replace the o-ring seals, they don't cost much, if they are the factory one piece type, it sounds like it is time to install the two piece type, and if you can, go ahead and replace all four of them, while you are doing the repairs. I think that the CAT, will sometime cause the tubes on the drivers side to prematurely leak before the right side due to the higher temps the drivers side tubes are exposed to. I might be wrong with this, but it seems to me, that I have seen more drivers side tubes leak, before the right side tubes leak on a 3.2. Ditto, on the Bentley Manual! Good luck!!