Pour Point versus Mini-Rotary Viscometer (MRV)

[virginoil]

Hi

I note that Mobil no longer states pour point low temperature values for some of its oils. Is there are any correlation between the 2 systems for representing low temperature flow/pumpability ?

Below are some examples from the Australian website.

How is the MRV value to be interpreted ?

Mobil 1 5w50
MRV at -35ºC 27653
Pour Point temp ?

Mobil 1 15w50
MRV at -40ºC 12188
Pour Point temp ?

Mobil 1 0w40
MRV at -40ºC 26242
Pour Point temp ?

 

[ARCOgraphite]

What's up with the 15w-50 MRV? Vis Looks too low. USA/NA MSDS has no MRV listed and PP @ -39C