10w40 vs. 15w40- what's the diff?

Discussion in 'Mechanics Garage' started by Rich T, Apr 19, 2011.

  1. Rich T

    Rich T New Member

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    Got everything together to do my first oil change. Want to try Rotella T, but where I went the closest they had was 15w40, which I bought. Thought i'd check in here before I did the deed. Should I take it back and look elsewhere for the recommended 10w40?
    Thanks!

    Sorry for another oil thread :behindsofa:
     
    Last edited: Apr 19, 2011
    Rich T, Apr 19, 2011


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  2. tmyoungjr

    tmyoungjr New Member

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    oh god ... another oil thread!

    more seriously read my favorite website (theres also a ton about filters there too)

    All About Motor Oil
     
    tmyoungjr, Apr 19, 2011


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  3. Rich T

    Rich T New Member

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    Thanks for the link- the Yamazuki 867 Nintruder might be my next bike! :cool:
     
    Rich T, Apr 19, 2011


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  4. Rollin_Again

    Rollin_Again Member

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    The difference between the two is the viscosity of the oil at low temp. So basically the 15w40 will be thicker and less viscuous in cold weather. I've been running Rotella T 15w 40 in my 07 for the past 3 years with no issues but keep in mind that our winters in Atlanta are very mild.

    Rollin
     
    Rollin_Again, Apr 19, 2011


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  5. bitterpil

    bitterpil New Member

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    You have one good site up there. Here is another. Welcome



    Read up, it is interesting stuff.
     
    bitterpil, Apr 19, 2011


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