So, Mobil makes about 47 different 30 weight oils. This is a comparison of their consumer grade, readily available synthetics. I thought the 10w-30 was an odd duck, and the HM/Truck-suv oils actually have some benifit.
........M1 530 M1 1030 suv 530 AFE 030 HM 1030 EP 530 EP 1030
CST 40. 11.3... 10..... 11.3... 11..... 11.79.. 11..... 10.7
CST 100 64.8... 62..... 64.8... 63.1... 78.2... 61..... 66
VIndex. 169.... 147.... 169.... ....... 145.... 169.... 148
FlashP. 230.... 224.... 230.... 228.... 231.... 230.... 230
PourPt. -48.... -45.... -54.... ....... -54.... -48.... -45
Density 0.8.... 0.86... 0.86... 0.845.. 0.865.. 0.86... 0.86
HTHShea 3.09... 3.14... 3.09... 2.99... 3.66... 3.1.... 3.1
........M1 530 M1 1030 suv 530 AFE 030 HM 1030 EP 530 EP 1030
CST 40. 11.3... 10..... 11.3... 11..... 11.79.. 11..... 10.7
CST 100 64.8... 62..... 64.8... 63.1... 78.2... 61..... 66
VIndex. 169.... 147.... 169.... ....... 145.... 169.... 148
FlashP. 230.... 224.... 230.... 228.... 231.... 230.... 230
PourPt. -48.... -45.... -54.... ....... -54.... -48.... -45
Density 0.8.... 0.86... 0.86... 0.845.. 0.865.. 0.86... 0.86
HTHShea 3.09... 3.14... 3.09... 2.99... 3.66... 3.1.... 3.1