I was going to buy Sea Foam before my oil change coming up in the next 200 miles, but I'll give that a whirl!
My oil pressure has always been great, just above the middle line! I cleaned out everything I could when I removed the oil pan to do the rear main 50k back or so, and like I said, have flushed the system several times throughout it's life with me. I really wanted to make it last to 300k from the get go (and knew that it was a teenage girl's first car, that lived on a farm, before I got it...).
ray: