My MSP is stock so you can use it as a baseline. Cold start is 65-75psi; 20psi @ idle when warm (12psi if it is hot or has been run hard.) I run Pennzoil Platinum 5W-30 with a K&N filter for th 626 V6. I am using an Autometer Ultralite mechanical gauge teed off of the stock oil pressure sensor. My car has 57k mi, ran Mobil 1 5w30 since 5k mi and has run Pennzoil Plat for the last 7k mi.