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Thread: Zinc additive

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    formerly Gold06RXP Turbo Nick's Avatar
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    Zinc additive

    Was wondering if anybody has used a zinc oil additive to help with cam lobe and bucket wear? Thanks


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    silver93t's Avatar
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    Those are more for older engines in my opinion.

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    64physhy's Avatar
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    I use oil with added zinc in my '74 Duster stroker because of the older engine design and steep angle of the cam lobes, but don't think it's necessary on this since they were designed after the zinc was taken out of most oils.

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    shrabber's Avatar
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    Off the topic what you got in that duster a slant

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    formerly Gold06RXP Turbo Nick's Avatar
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    I think it would do the same thing in a modern engine as it would in an older engine. The reason they removed zinc from oil is because it kills the converter in autos. We don't have a converter to plug up. I'm gonna check with Web cams and see what they say.

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    Leendert's Avatar
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    Let us know what they say

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    64physhy's Avatar
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    Quote Originally Posted by shrabber View Post
    Off the topic what you got in that duster a slant
    360 stroked to 414

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    64physhy's Avatar
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    Quote Originally Posted by Turbo Nick View Post
    I think it would do the same thing in a modern engine as it would in an older engine. The reason they removed zinc from oil is because it kills the converter in autos. We don't have a converter to plug up. I'm gonna check with Web cams and see what they say.
    Does the recommended Yamalube have the zinc taken out? It may still have the zinc in it since its not used in anything with a converter.

  10. #9
    I'm not sure what newer Yamaha's are calling for , but I also like a little more Zinc so I have been using Amsoil 10w40 High Zinc formula in my Honda most of it's life. Runs great with 517 hours on it.

    I'm not sure what Yamaha's S/C clutch requirements are , but I imagine any Motorcycle grade synthetic or even Amsoil's own Marine 10w40 should have more Zinc than your average oil, and both are wet clutch safe.

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