I was looking at the new msds for the castrol edge Extended Protection and found that it does not appear to just be group III base oils anymore. However, I found a very interesting ingredient.
Fatty acids, tallow, compounds with triethanolamine
What is this additive?
http://msdspds.castrol.com/ussds/amersdsf.nsf/Files/F22F382BE0FEB26B80257BBA00527EB3/$File/221042Castrol%20EDGE%20Extended%20Performance%205w30.pdf
http://msdspds.castrol.com/ussds/amersdsf.nsf/Files/C79A0F506F05890D80257BBA00527EC4/$File/221043Castrol%20EDGE%20Extended%20Performance%205W-20.pdf
Fatty acids, tallow, compounds with triethanolamine
What is this additive?
http://msdspds.castrol.com/ussds/amersdsf.nsf/Files/F22F382BE0FEB26B80257BBA00527EB3/$File/221042Castrol%20EDGE%20Extended%20Performance%205w30.pdf
http://msdspds.castrol.com/ussds/amersdsf.nsf/Files/C79A0F506F05890D80257BBA00527EC4/$File/221043Castrol%20EDGE%20Extended%20Performance%205W-20.pdf