Esters, I assume? I'm surprised no one is discussing this yet on this site:
https://www.castrol.com/en_us/unite...l-edge/edge-bio-synthetic-motor-oil.html
EDIT: Nevermind… I did find some earlier discussion on this, that I missed on my first search. I thought it was something new.
https://www.castrol.com/en_us/unite...l-edge/edge-bio-synthetic-motor-oil.html
EDIT: Nevermind… I did find some earlier discussion on this, that I missed on my first search. I thought it was something new.
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