TITAN Pro Flex Claim:
https://www.fuchs.com/au/en/special/...lex-sae-5w-30/
Quote: The product also is advantageous for cars with exhaust gas after treatment systems such as catalysts or particulate filters, as it keeps their conversion rate high and provides better life time.
Keeping the conversion rate high presumably means at 350 deg C, ie normal
exhaust temp. That would theoretically lead to fewer regens, but I can see no facts to support the claim apart from anecdotal evidence.