When I started my truck to come home from work the oil pressure was 80# as normal so hit rush hour traffic and next time I looked it was still 80# should have been at 60#. Just put a gauge in a couple months ago because dash gauge only went half way up and started quivering there, put separate gauge in and that one is a little nervous also about 2-3#. Thought I had read something about a valve down by oil filter that gets sticky? Sorry about long story. Any help sure would be happy.