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Thread: 4 year old rebuild in Corvette - now tapping or knocking...leaking oil
          
   
   

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  1. 08-29-2015 10:23 AM #1
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    firebird77clone
    firebird77clone is offline CHR Member
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    Isn't there an oil additive to address the zinc and phosphorus issue?
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  2. 08-29-2015 11:47 AM #2
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    rspears
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    Quote Originally Posted by firebird77clone View Post
    Isn't there an oil additive to address the zinc and phosphorus issue?
    Yes, one can add ZDDP, but many don't realize that having too much zinc and/or phosphorus can bad too. I'd strongly recommend using a properly formulated oil, Gibbs or Penn's for example, and let the chemists handle the chemistry.
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    Roger
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