Thanks dvldoc. I get your point. However I am using an old 4d56 block with newer attachments like crdi and egr (strada 2011). This is the confusing part. I don't know how to treat my engine if its OLD or NEW. As what Ry_tower said tho, the manual only requires CD rated oils, which makes the shell hx7 perfectly fine to use, but if you look at the characteristics of CF oils, its not really suited for CRDI and engines with EGR.

Im also considering the Motul CRDi specific since its already CH and CI rated but as I've said, Im more inclined to oils readily available in the market.

Many thanks.