"I'm not quite sure why I bought this given the Fuchs Pro Flex has been so good, but I bought this for the next oil change. It was on special at Repco, and I'm intrigued by the claim that it meets ACEA C2 and C3."
Meets c2 and c3?
https://www.oilspecifications.org/acea.php
https://www.google.com.au/url?sa=t&r...ykGq_2yjyPiHgj
The C3 claim looks superfluous, pointless etc.
Redundant, another good old Latin? word.
https://www.etymonline.com/word/redundant