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Thread: Is this OK to use?

  1. #1
    Standard Member ant2781's Avatar
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    Is this OK to use?

    My friends has sold his bike and palmed aload of oils on to me, one of which is a brand new 4ltr bottle of Castrol Power 1 Racing 10w 40. I know the manual recommends 5w40 but would this be OK? Thanks.

  2. #2
    Standard Member DrIoannis's Avatar
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    Re: Is this OK to use?

    My manual says 10-40 or 5-40

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    Mike D MRD1000's Avatar
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    Re: Is this OK to use?

    Yes it fine, it's fully synthetic

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    - Mike D -

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    2 YEAR PREMIER MEMBER r25sti's Avatar
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    Re: Is this OK to use?

    i use 10/40 in my track bike and 5/40 for road.

  5. #5
    2 YEAR PREMIER MEMBER Flyingscotsman's Avatar
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    Re: Is this OK to use?

    Yes it should be OK. The 5w40 will perform better at cold temperatures (eg winter on road), but for summer or track use 10w40 should be fine. The hot viscosity 40 is the same.

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    LIFETIME FORUM MEMBER stuartb's Avatar
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    Re: Is this OK to use?

    I find it almost impossible to find 5/40 locally...Fancying a quick O and F change last year I tried Halfords..Mickey Oates..Vic Devines..Ducati..J and S..Euro Car Parts and a few others with no joy.. everyone had 10/40 tho.

    So 10/40 is OK for our machines then ?

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  7. #7
    Forum Moderator RyS1000RR's Avatar
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    Oil

    Quote Originally Posted by stuartb View Post
    So 10/40 is OK for our machines then?
    It will tell you what oil type to use in the Owner’s Manual.

  8. #8
    LIFETIME FORUM MEMBER stuartb's Avatar
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    Re: Is this OK to use?

    Sure it says 5w/40...

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  9. #9
    2 YEAR PREMIER MEMBER Flyingscotsman's Avatar
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    Re: Is this OK to use?

    Quite a few threads on this e.g.
    https://s1000rrforum.co.uk/showthrea...ighlight=10w40

    Provided it's 10w40 bike oil it should be fine for summer and/or track use. The 5w40 will have better performance on cold winter starts. If like the OP you had some 10w40 already it should be ok at this time of year.

    I get Motul 300v 5w40 mail order from Opie oils.

  10. #10
    Forum Moderator alex's Avatar
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    Re: Is this OK to use?

    @stuartb just order from Opie Oils using the discount.

    300V Motul 5w40

    - Alex

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