I'm currently running PP 5w-30 in my car, but on my UOA from my last change at 5k, the oil viscosity had dropped out of spec. The car is tuned and pushing more boost than stock, I don't beat on it, but it does get the throttle pushed hard now and then. From what I understand on here, PP tends to be on the light side of a 30w to start with. I'm wondering what other easily attainable oil you would recommend for me to use? I was looking at M1 and Castrol Edge, not sure if there's a tangible reason to go with one over the other.
Thanks.
Thanks.