High KV100 for a 0W-20 is a bad thing
in terms of engine wear. It shows that it has a thinner base oil
and a higher VII content
. The engine wear is dicated by the base-oil viscosity; so, you want the lowest KV100 possible, not a high KV100.
Here is the estimated base-oil viscosity and VII content values for the VME with the HTHS data as a guess:Estimated base-oil viscosity at 150 °C (BO DV150) and VII content of selected oils
Note in the spreadsheet how the Euro-OEM version Valvoline SynPower™ MST C5 0W-20 has a low KV100 because it is designed with reducing the engine wear and engine deposits being the primary concern for Euro-OEM oils. For ILSAC oils on the other hand, the fuel economy is the primary concern; so, they use a thinner base oil with a higher VII content -- resulting in a higher KV100 -- to increase the viscosity index VI for better fuel economy
, while compromising the engine wear and engine deposits.