Greetings

I am about to do an oil change on my Diesel (I only got vehicke about six months ago). The previous oil used was
http://www.mobil.com/Australia-Engli...0A_15W-40.aspx

Mobili have told me thatoild has been superseded by
http://www.mobil.com/Australia-Engli...MX_15W-40.aspx
and has another additive. Does anyone know if the Castrol oil below would be a suitable substitution.

http://www.supercheapauto.com.au/onl...id=10237#Cross

Thanks