Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - good info on break in oil
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Old 10-21-2012, 01:17 PM
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78novaman 78novaman is offline
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Good find Dinger. There is a lot of misinformation out there.

I just broke in my freshly build flat tappet small block chevy using Brad Penn SAE30 break in oil. It was a bit pricey at ~$7/qrt but that is much cheaper than the repair bill on rebuilding a 2nd time!

For the 500mi break in oil I have Meijer brand (yes the department store!) conventional 10w40 which, for now, is SL rated oil. For piece of mind I replaced a qrt with Risline ZDDP oil additive.

AMSOIL makes a synthetic oil with the required zddp levels called Z-ROD that I may use after the 500mi break in. It's $10+qrt though. Comes in 10w30 & 20w50 varieties.
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