I don't have that much MSDS expertise but here's what I found; Rotella T syn blend MSDS states it contains "synthetic hydrocarbon base stock" 10-30% and has the PAO CAS#(68037-01-4) listed. The FormulaShell Full Synthetic MSDS also says it contains "synthetic hydrocarbon base oil" 75-95%, but the CAS# is listed as "mixture". So I guess the "ingredients" supersede the CAS# in this case?
Here's the spec sheet Full synthetic
The pour points aren't very impressive, but the cold cranking and low temp pumping look pretty good IMO.
Here's the spec sheet Full synthetic
The pour points aren't very impressive, but the cold cranking and low temp pumping look pretty good IMO.