Hi mileage oils tend to be thicker than spec. I'm willing to be the two quarts on the second fill did it.
No PPHM 5w20 cSt @ 100*C is 8.0 QSUD 0w20 is 8.3.
PUP 5w20 cSt @ 100*c is 8.8. My oil pressure is lower. I checked. The dipstick on level ground and it was perfect between add and fill lines.
I'll give it 1k miles to see if that makes a difference. I chose QSUD 0w20 because it's thicker at operating temp then their 5w20. This whole thing was not what I expected. I knew PUP was good but when I bought it from the Dealer it had some sort of Mobil oil in it and the gas Milage has been as good since. I have not liked any Mobil product I tried but apparently my Hemi liked it. I had to dump that fill at 400 mikes because they didn't put the gasket back on when they changed the oil and it was dumping it out. We will see what the Valvoline does going into next year. I deffinilty wasn't expecting this. I use QSUD in all of my outdoor power equipment and have been so happy with it wanted to try it in my hemi