Hi, Mark, Brian here, I just read your post so I just went down to the carport and started my truck (only parked about 20 min.) and started it , slow idle,( 550 RPM) it took about 10 seconds for oil pressure to show. Note: I am trying out mercruiser 25/40 oil this year and it has about 700mi. on it. I can check it tomorrow on a cold start. My engine has about 130,000 miles on it and to my knowledge has not been rebuilt.
