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Dear advisor, I have a newly bought 2010 Mazda Premacy (Mazda 5) with 90,000+ km. For its MZR 2.0 DISI engine, the online owner's manual states that OW 20 is to be used for USA/Canada. It also says that for Mexico, use 5W 20, and if that's unavailable, to use 5W 30. As I'm in Christchurch, which viscosity would you advise I use? Would 0W 20 be the best, followed by 5W 20 and 5W 30? Thanks very much :)

Hi there,
NZ doesn't tend to have the extremes of weather that some parts of the world have, so I would recommend a 5w30 oil as recommended for the 2.0 ltr diesel Mazda 6. As the Premacy is an import, we are not able to see the exact oil specs for it.