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Castrol Sport oil 0-40w in a 1.8t QS?

Discussion in 'A4/S4 forum(B5 Chassis)' started by OllieQS, Jan 22, 2012.

  1. OllieQS

    OllieQS Member

    Oct 25, 2011
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    Doing an oil change over the next week and seen this oil and wondered if this would be better than the 5-40w or not. I was going to use Castrol edge. Thanks.
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  3. aragorn

    aragorn "Stick a V8 in it!"
    Staff Member Moderator VCDS Map User

    Jan 30, 2008
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    No real advantage i wouldnt think.

    The actual designation is 0w-40 and 5w-40. The "w" part signifies the thickness of the oil when its cold, and the other number is its thickness when hot. So once warmed up both oils have the same 40 weight rating, when cold one is 0 and one is 5, so the 0 will be slightly thinner.

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