Terry
With your contacts maybe this gentleman might answer your Castrol question. Ed Kollin
director of R&D for Lubrication Science in Scotch Plains, New Jersey
It's from an C&D article by PATRICK BEDARD
Searching for the right motor oil for 'keeper cars.' I thing? If you want the whole article send me an e-mail ntaceng@sprintmail.com
The gent sounds like a person who knows the real story about oil.
Paul