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5w30 or 5w40?

StatedRain Dec 15, 2020

  1. StatedRain

    StatedRain Registered User

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    Normally I'd pay a garage to do the service on my car but money is tight so I'd rather save a few quid and do it myself, but I'm struggling to find a definite answer for what oil I'm supposed to be using Haynes manual says 5w40, europarts recommends 5w40 and 5w30, having a look at previous posts etc it seems both are recommended, car is 1.9tdi 140k miles bxe engine code.

    [​IMG][​IMG]

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  3. Gazwould

    Gazwould Registered User

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    5W30 507.00 .


    20201128_114156.jpg

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  4. StatedRain

    StatedRain Registered User

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    Big difference in price there, is there any reason why 1 is so much cheaper?

    Edit: didn't realise 1 was 20l and the other 5

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  5. Matt268uk

    Matt268uk A3 Sportback VCDS Map User

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  6. nluk100

    nluk100 Registered User

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  7. norris_309

    norris_309 Registered User

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  8. Gazwould

    Gazwould Registered User

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  9. Wahlstrom

    Wahlstrom Registered User

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    5w40
    5w30 causes lobe and lifter wear in the long run on the PD engines
     
  10. bronco

    bronco Vancouver BC Canada

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    I only use 5w40 made by Motul or LiquiMoly.
     
  11. Gazwould

    Gazwould Registered User

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    You are not seriously considering 5W30 507.00 Vs 5W40 505.01........ ?
     
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  13. Gazwould

    Gazwould Registered User

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    Brand is unimportant , manufacture spec more so .
     
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  14. nluk100

    nluk100 Registered User

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    I think you'll find 5w40 is actually a good choice!
     
  15. Gazwould

    Gazwould Registered User

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    OMG you know nothing , your recommendation wasn't even a PD oil !

    Viscosity does not dictate protection it's oil quality / film strength , basically first and foremost oil basestock groups and additive package .


    Might as use 20W50....
     
  16. Gazwould

    Gazwould Registered User

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  17. norris_309

    norris_309 Registered User

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    As stated above, go with the spec of oil.
    With my old pd130 golf asz engine I used quantum platinum pd oil which is 5w 40 505 01 spec. but not longlife. (Changed yearly/8-10k miles)
    In my similar engine A4 (avf) I've always used the longlife 3 which is 5w 30 507 00 spec, also changed yearly.

    You'll be fine with either as long as you stick with the spec 507 00 or the 505 01 but for the money you may as well go 507 00.
     
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  18. Gazwould

    Gazwould Registered User

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    Absolutely .

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    Last edited: Dec 15, 2020

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