I just bought a new 20l container of oil. I was using FUCHS pro flex C3.
Everytime I buy oil the labels seem to have changed. Now it's flex23, somehow meeting C2 and C3 specs.
FUCHS do a Ford WSS-M2C9132/A5-B5 which for reasons not given is 'particularly suited to Ford duratorq..'
According to the the Lubrizol spec comparison tool;
https://online.lubrizol.com/relperftool/pc.html
(might need to go to the main Lubrizol site first if the link doesn't work)
Ford WSS-M2C9132/A5-B5 not the best for DPFs, question is, would it make a significant difference?
I went with the Flex23, $190.00/20l.
Not that worried about it, just curious.