Cold pumpability of Group 4 base stock oil

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1,499
Location
Newark NJ
I distinctly remember reading a post on here. Said "The cold flow properties of Group IV oil is not so great." Any truth to this? Can we go more in-depth? I believe this was in a thread about Royal Purple oil. Opinions aside.. their 0W-20 has been great for me. How can 0W have bad cold flow?
 
Messages
43,676
Location
'Stralia
Have a look at http://www.cpchem.com/bl/pao/en-us/Pages/faq.aspx There's a chart... Illustrating a a difference between GrIII and PAO, specifically in two basestocks that have the same VII (i.e. KV40/KV100, VI is a calculated not property in it's own right) The demonstrated PAO would probably get by a 0W test unaided...the GrIII would need help to get there.
 
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