Originally Posted by Virtus_Probi
Originally Posted by Danh
The OP is probably referring to MSDS published by Mobil. For example, Mobil1 0w-30 AFE shows 20-30% "Distillates, Heavy, C18-50, Branched, Cyclic and Linear", which is GTL produced by the Fischer-Tropsch method.
Not sure how widespread this is through the M1 lineup, but it is relatively new.
XOM refers to VISOM as a Group III+ base stock, but their description seems to indicate that it is not made through a GTL process.
Would VISOM not show up as "Distillates, Heavy, C18-50, Branched, Cyclic and Linear"?
I'm genuinely curious and have no idea what the answer might be...
https://www.exxonmobil.com/english-GB/Basestocks/pds/GLXXVisom-Series
It's a slack wax I believe I have read this in the past.