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5w-40 or 10w-40?

Discussion in 'A3/S3 Forum (8L Chassis)' started by mike_plymouth, Jul 12, 2010.

  1. mike_plymouth
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    mike_plymouth Member

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    Hello People, Iv got a 1.8 N/A A3 and am looking at the above? whats the diff? i know 5w-40 is fully synthetic and 10w-40 is semi but what difference will that make in the car? Im running 10w-40 Mobil 1 at the mo

    Thanks in advance

    Mike
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  2. S3KO4
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    S3KO4 Member

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    you can have them both in fully synthetic, however the 5 40w works better at lower temp and start up giving u a better coverage , i would go for 5 40w ;)
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  3. finesse
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    finesse Active Member

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    good question, wanted to know too
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  4. mike_plymouth
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    mike_plymouth Member

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    its just i was looking on opieoils.co.uk and it says the 10w-40 is standered and 5w-40 is advanced, now its been driving a bit jerky now and again and iv only ever used 10w-40 in it so i thought as long as it wont damage it id remove the sump, clean all the gunk out and give it a load of 5w-40 so see if that helps.
    I saw on here ppl cleaning their oil pick up filter but havnt seen how this is done, mines on 118k miles now so god knows what il find in there... small child?
    #4
  5. Matt82
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    Matt82 Active Member

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    10w40 in the na
    5w40 in the turbo

    just imo, but im only ever running my 20vt on 5w40 platinum because we know the heat these things generate
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