So, per Dennis Haynes' and the list's advice I tried draining out some oil-
after discovering how low my pressure was when I installed a gauge. I always
drove my van with oil just over the top line on the dipstick thinking that this
would give me more pressure. I let the oil down to halfway between full and
refill on the dipstick line (2.1L WB stock 158K miles). My oil pressure went
from near zero at hot idle to about 5PSI and I had 5-10 more PSI and about 40 to
50 degree F cooler oil at highway speeds. I wish I would have known about this
sooner. Advice to all: don't let your oil to the full line and dont' let it
below the refill line.
Dixon