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  1. #1

    Synthetic Oil 05 FX HO

    Has anyone used sythetic oil in the newer yamaha 4 strokes, i was at the dealer get stuff to open it up for the year and he said not to use synthetic in the engine because it would cause valve problems, however the owners manual does say not to use it just says use API rated...just wondering how much of what he said was bs. before this i would get it changed at the dealer for 100 bucks a pop.....


    Thanks


  2. #2
    800AMSOIL4U's Avatar
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    Quote Originally Posted by L79 View Post
    Has anyone used sythetic oil in the newer yamaha 4 strokes, i was at the dealer get stuff to open it up for the year and he said not to use synthetic in the engine because it would cause valve problems, however the owners manual does say not to use it just says use API rated...just wondering how much of what he said was bs. before this i would get it changed at the dealer for 100 bucks a pop.....


    Thanks
    Sorry to say your dealer is misinformed. You can use a Synthetic Oil in your ski with no issues. Are you saying the owners manual says not to use synthetic oil? What API spec does it call for? Change the oil your self and save the $.

  3. #3
    the owners manual states nothing about using dino or synthetic, the api 's are se, sf, sg, sh, sj or sl or a combination of these...dealer was just trying to make me buy thier oil......thanks

  4. #4
    800AMSOIL4U's Avatar
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    Quote Originally Posted by L79 View Post
    the owners manual states nothing about using dino or synthetic, the api 's are se, sf, sg, sh, sj or sl or a combination of these...dealer was just trying to make me buy thier oil......thanks
    I hate it when the stealerships try to scare people into just using their product "due to it will void the warranty". Here are 2 options for you on a synthetic marine oil, depending on what weight it calls for.

    SAE 10W-40 Formula 4-Stroke®
    Marine Synthetic Motor Oil


    http://www.amsoil.com/redirect.cgi?zo=367509&page=storefront/wcf

    SAE 10W-30 Formula 4-Stroke®
    Marine Synthetic Motor Oil (WCT)

    http://www.amsoil.com/redirect.cgi?zo=367509&page=storefront/wct

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