It's in spec with what the gm engineers say and also what is written in the gm bulletin. Also that is at 400rpm after a hard drive. Tap the throttle and it jumps to 40. Floor it hard and looks like it is way too high of pressure. Remember they say something like 2 or 3 psi per 100rpm so 400 times 2 or 3 is 8-12psi. Man in really need to find that bulletin again. My truck gets hotter then stock and runs a race based oil and additives. These new oils are more synthetic additives then "oil" and the additives I add are built for the exact metals in the bearings and parts. They say they soak into the metal. And they must to something because in a week of hard driving the additive is gone and I top off with oil and have no problems after that. My built lsx ran 15psi at idle. I believe we have few things going on here. 1- hard to eye ball guess the pressure 2 - it is a two stage pump so at 400rpm yes it is low number but any throttle input it jumps to perfect pressure numbers 3- the sensor/gauge are more of a dummy light, they are slow and inaccurate at best. I think a good arguement can be made for that is better thick oil at less flow or thin oil at heavy flow. Many say thiner oil protects better as it can get into the tighter clearances better, but there is a point that if your blowing that thought the wearing surface faster can the oil do its job. Also it doesnt stick onto the rod or fly around as much reducing rotional mass. There is a reason all race oils are super thin. Again a small jump in oil weight will probably not make a difference. Sent from my SM-N960U using Tapatalk