[factman]

i run 15-50 redline and i can swear by the stuff. i run my car at about 4000rpm for about 40 minute commute with just a 1.5qt sump and standoffs and my oil temp sits right at 185 all the time. plus i drag race my car and drive it quite car. it hasn't even really lost any hp's after about 40000 ive put on it, mostly around town and always seeing redline of 7000 rpm atleast a few times a day. it is a 1776cc with 44 idf's and ported 044 heads. oh and my oil psi stays at about 55 psi when cruising unless its a really hot day over 100 F. my two cents.