Tom,
thankyou, and that was my understanding as well.
Here's some of the old Shell information from back in their day on XHVI, which is demonstrative of what "synthetic" meant back in the day.
http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3471384/1997_Shell_Product_Data_Book_-
thankyou, and that was my understanding as well.
Here's some of the old Shell information from back in their day on XHVI, which is demonstrative of what "synthetic" meant back in the day.
http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3471384/1997_Shell_Product_Data_Book_-