"Given the natural low Noack of oils like 10W30 it's a shame it's not considered a "modern" grade and it's not a Dexos grade"
Agreed...but not all ILSAC 10w30 oils are low NOACK. QSUD 10w30 is an exceptional ILSAC at 5.
PU and PUP 10w30 was stated at NOACK 5 or 6 until SOPUS removed it from...