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[Stewie]

Originally Posted by Buehler445

Everything used to take break in oil. Now the specs are tighter and its not necessary in a lot of applications, but y20eah, break in oil is deliberately shit oil.

If you had drained it from the start it would burn oil forever.

I looked up break in oil and it seems to be used in high performance racing engines. I assume it's for the same reason. That is, to set the piston/rings/cylinder for long term performance. No matter the machining precision there are always flaws.


I wonder if I can get 20hp out of my 19?