can someone explain to me what oil pressure i should be lookin for on my car?? cause i don't really have a clue about whats good and whats not ... i'm currently using penzoil 5w 60 i think after changing from castrol and i notice that my oil pressure is lower than it was when i was using the castrol ... i better change my oil too ... its been 10k LOL but thats ok cause it hardly ever reaches boost ... about 95% in vacuum hehehe