Break in oil......
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Break in oil......

  1. #1
    Senior Member bajadad's Avatar
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    Default Break in oil......

    I apoligize if there's a thread I couldn't find one. Anyways what do you guys use for break in oil, on flat tappet camchafts?

    I was told use...Delo 400
    Magnesium 23
    Calcium 3343
    Zinc 1378
    Viscosity 100 C 15.95
    TBN* 10.63

    because of the high Zinc.

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    mo balls than $cents$ IMPATIENT 1's Avatar
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    delo still has less zinc than rotella, we do oil samples from time to time and when we send delo in, we generally have a higher metal particulate count than with rotella. that means rotella is doin a better job i'd go with rotella t and go by the gm dealership and see if they have any eos on the shelf, and make sure its the older formulation(it'll say new on it if its the new shit that don't work)

    Dare to be different, if it turns out great you can claim you planned it that way.

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    I ran the same Castrol Syntech that I have run every day for the last 5 years.
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    I use the Royal Purple break-in oil. It's supposedly specialy formulated for break-in and I have yet to have any issues with it.

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    Senior Member H20MOFO's Avatar
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    No synthetic for me on break in, joe gibb is what my motor guy used on mine. After that some off road only(not legal for street use) valvoline 20-50. Here we go again.lol
    Another Hot Boat refugee

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    Driver 78CoLeBBF's Avatar
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    I use a oil made by texas refinery has lots of zince but also lots of moly
    Its a FORD thing chevy's arent quick enough to understand

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    Strap on the JATO konajet74's Avatar
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    Joe Gibbs break in oil, Good S#@* maynard!!!

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    Brad Penn

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    Senior Member jetboatperformance's Avatar
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    Torco 40 wt "Breakin" Here ! used Rotella for years with good sucess, only cam I lost in recent history was with Delo Tom

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    New here Beer:30's Avatar
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    Any oil professional will tell you the non-syn for break-in is a total myth. GM has been using if for several years on upper-scale motors, right from birth. Doesn't hurt a thing.

    I just first-time-fired a 302 in my '52 Ford Crestliner Convertible. I don't plan on running that motor on syn, so I put in Valvo 10-40 and one can of GM EOS engine oil supplement (for flat tappet). I changed the oil after 1 hour of running and put another can in with the same spec oil. No flat cam. I haven't lost a cam yet running the GM EOS for break-in. I know TWO people who have ran without it, thinking it was snake-oil. They BOTH lost the first cams in their motors. Now they know.

    So, you can run whatever oil you want for break-in. Just add whatever EOS you want. GM is my pick, but I would not be afraid of the CompCams brand or any other brand that has a break-in specific product.
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  13. #11
    Senior Member cyclone's Avatar
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    non-synthetic valvoline and 1 bottle of lucas oil break in additive.

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    LF2
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    Quote Originally Posted by cyclone View Post
    non-synthetic valvoline and 1 bottle of lucas oil break in additive.
    I just bought some of the lucas tb-zinc break oil. they also recommend that for flat tappet motors you can always use the additive not just for break in.

  15. #13
    Boat Nut sleekcrafter's Avatar
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    Quote Originally Posted by cyclone View Post
    non-synthetic valvoline and 1 bottle of lucas oil break in additive.
    X 2 on the lucus Zink additive, then continue use at every oil change.
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  16. #14
    Senior Member bajadad's Avatar
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    Quote Originally Posted by sleekcrafter View Post
    X 2 on the lucus Zink additive, then continue use at every oil change.
    Thanks guys, I have the Lucas additive, probably run that and Rotella...

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