KSL specify the lubricant names based on KSL previous experiences from various customer and oil used by KSL.
If SEI require to use alternative oil from the reputed Oil manufacturer instead of one mentioned in lubricant list,
KSL would advise to get advice from representative/ technical expert from oil manufacturer whether it can be replaced or not.
In General terms of comparison KSL does not find any major difference in properties of both the oil.