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what type of oil to use on engine break in

This is a discussion on what type of oil to use on engine break in within the General Help forums, part of the LSx Technical Help Section category; just wondering what type of oil to use on a new engine break in. and any other info on breaking ...

  1. #1
    Junior Member josh110781's Avatar
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    what type of oil to use on engine break in

    just wondering what type of oil to use on a new engine break in. and any other info on breaking in an engine would be helpful. thanks

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    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
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    Just use dino oil. And I didn't break mine in, I drove it hard on the first day.

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    Grand Imperial Wizard Sarge's Avatar
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    This is an old school question no longer applies to todays machining techniques. Run whatever oil you wish to run. Dino or Synthetic. Many cars come with synthetic from the factory these days for a reason.
    Now with that said...I prefer dino for the first 5000 miles and here is why. No it has nothing to do with the old "gonna break my rings in"...it has to do with flushing out the build greases and gunk from the factory....they use all kinds of crap to install cams/bolts/rings that needs to be flushed out....I run Castrol GTX....run it a 1000 miles and change oil and filter...run it again another 2000 miles and change the oil and filter....then one last time for another 2000 miles.....then you can run whatever you want.
    Drive it like you stole it from day one. I am a firm beleiver...cars broken in with cylinder pressure up there versus driving em like babies are much better off in the long run...have better compression and less issues....
    This is my signature. It is mine. Nobody else has one like it.

  4. #4
    Junior Member josh110781's Avatar
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    what should i use 5w30, 10w30, 10w40, 15w40, 20w50

  5. #5
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
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    I broke mine in with 5w-30

    5w30 or 10w30 should be fine.

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