Im new to the forum so if this has been mentioned already forgive me. I am wanting to try thicker oil in my boat to increase oil pressure. I have a 455 olds that I built and the clearances are on the loose side. I have been told that thicker oil can help increase oil pressure. I run 20W-50 Castrol now. Im wondering how do you figure out how thick the blended oils are relative to straight weight oils. Example would be, whats thicker 20W-50 or 40W, and so on.
Thanks
[ July 01, 2003, 01:09 PM: Message edited by: Kevin Vidrine ]
Thanks
[ July 01, 2003, 01:09 PM: Message edited by: Kevin Vidrine ]