I'd change it now like the others stated.
Now, if you daily your Z, and you do a lot of stop and go traffic, I saw a lot of owners will do it around the 3K OCI (Oil Change Interval). If you daily it with more freeways or longer drives with less stop and go would be the 5K OCI. If you do weekends only or barely drive it, people here do the 7K OCI.
Just note that hotter or colder climates of your location can influence the intervals.
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VERTEX | SUIVAX | AMUSE | SSR | SPARCO | STILLEN | FAST INTENTIONS x HKS | HANKOOK | NARDI | NRG | EVO-R | ROBISPEC | SPC
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