From what I've read, when doing a engine build you want to change the oil more frequently in the beginning to check for any metal shavings etc.

I'm just swapping in a JDM engine with around 30k-40k miles on it.
Do the same principals apply or should I just dump in some long life synthetic and call it a day?

Thanks,
Jon

 

that motor is already broke in.

just use some mobile1 5w30 synthetic.

 

Makes sense. Thanks for the confirmation!