I am trying to remove the oil feed line from the block to the turbo.
I believe it is the original 21 year old line and the nut is mostly rounded off.
Nut and tube turn as a complete unit even though I have sprayed it liberally with penetrating oil.
Any advice on how I may be able to remove it without destroying the tube itself ?

I believe it is the original 21 year old line and the nut is mostly rounded off.
Nut and tube turn as a complete unit even though I have sprayed it liberally with penetrating oil.
Any advice on how I may be able to remove it without destroying the tube itself ?
