[British-cars] XPAG oil pressure

[Mike Duvall]

When I start my XPAG (TD) I get 80 lbs of oil pressure. When it warms  
up the pressure drops to 60 and after driving it drops to 50 and  
remains there. After driving it drops to 20 lbs at idle.  I use  
multiweight oil 10-40 I think.  I drip oil all over the place.  I got  
the gauge from a professional rebuilder so i'm pretty sure it is  
accurate.  My friends report oil splatters on their windshields  
following me and I get an 8 inch puddle instead of a few drips when  
stopping.  At idle I almost get a steady stream.   It is also  
beginning to leak from around my pipes to the oil filter.  I have a  
filter adapter with a spin on.

Suggestions?  Thanks,  Mike