things to do before dyno day

Jordo!

Oil change only if close to whatever OCI you follow; otherwise, should be fine.

Mobil 1 is fine.

Plugs should be fine to 100K, give or take; colder plugs might be needed if you were going FI (i.e., turbo or SC), but not NA with bolt on's.

BUT -- do you have a baseline? If not, it will be much harder to determine how much you gained over stock from the breather mods (although you can compare before and after tune, of course).

What kind of dyno?

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Enjoy it. Destroy it.

synolimit

I'd have to dig and research more but we know these things "burn oil." Watery oil isn't good. You don't need a lab to see the pour rate out of the bottle. Based on a thinner oil flow rate and a motor notorious to lose some during OCI, I can't agree and say its fine. It might protect ok but you might end up spending more to refill and a number of other things that might happen which are just annoying.

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13 370z-