View Poll Results: What kind of engine oil are you using?

Voters
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  • Shell

    6 5.00%
  • Castrol

    41 34.17%
  • Nulon

    14 11.67%
  • Mobil

    19 15.83%
  • Penrite

    17 14.17%
  • Home Brand

    0 0%
  • Car manufacturer specific Oil

    4 3.33%
  • Other

    19 15.83%
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  1. #11
    OpelAus Enthusiast DirtyHarry's Avatar
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    gm oil i think is made by fuchs.
    Make me a sandwich.

  2. #12
    OpelAus Post Whore CNBLU's Avatar
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    Engine: Z20LET

    Current oil: Nulon full syn 10w/40

    Previous oil: Castrol Edge full syn 5w/30

    Feeling: 5w/30 was too thin, have had no probs with 10w/40
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  3. #13
    OpelAus Forum Addict SSS_Hoon's Avatar
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    also found 5w/30 too thin and am also now running 10w/40

    Also change my oil every 5000-7500k depending on how long it sits for between drives.

    u think mobil 1 is exxy try buying Royal Purple, i also have Royal Purple in the gearbox.

    Was going to try NEO but so far find Royal Purple fine so far.

    SSS_Hoon
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    ......all that work and still not enough killer wasps, So i'm in the hunt for more.....

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  4. #14
    OpelAus Forum Regular Z20LET's Avatar
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    Engine: Z20LET

    Current Oil: Nulon full syn 15W-50 street & track

    Previous Oil: Factory Holden crap

    Feeling: Can't notice much difference now as I've done about 6 changes now with the Nulon but definitely alot smoother feel over the factory stuff.
    Click here to enlarge

  5. #15
    OpelAus Post Whore gman's Avatar
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    Engine: Z20LET

    Current Oil: Royal Purple XRP 10W40

    Previous Oil: Motul Chrono 10W40

    Review: I have always only used Motul or Royal Purple. RP is my preferred and love it. Engine and gearbox always seems to run nicer with it..
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  6. #16
    OpelAus Enthusiast Keep'emRunning's Avatar
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    ..strangely enough.. from castrols website, edge 0W-30 is approved by vauxhall for the Z20let.

    i emailed them about 5W-30, just waiting for the reply (if any)

  7. #17
    OpelAus Owner poita's Avatar
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    Engine: X20XEV Ecotec FTMFW!!!

    Current oil: Sougi S 6000 (Gulf Western) 10w40

    Previous oil: Shell Semi Synthetic

    Feeling: Not a fan of the Sougi, can runs a little rough. Turned black as black after only about 3000kms.

    Not sure what to go to next
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  8. #18
    OpelAus Forum Regular NXA-16H's Avatar
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    Models: TT Zafira and XC Barina respectively
    Engines: Z22SE and Z14XE respectively
    Odometer: Approx. 167'000kms and approx. 275'000kms respectively

    Now for a good long while, I preferred to use Mobil-1 5w40 exclusively.

    Nowadays though, I use Shell Helix High-Mileage 15w40, specifically for its cleansing, and anti-friction properties.

    I also use an extra anti-friction additive made by a German firm by the name of LiquiMoly.

    NXR-94N

  9. #19
    OpelAus Forum Addict JohnBu's Avatar
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    Engine: SRi Turbo Z20LET 132,000km

    Current oil: Shell Helix Ultra (5W40 from memory) fully^ synthetic

    Previous oils in order:
    - Holden Shell Helix (not ultra) semi-synthetic
    - Mobil 2000x2 10w40 semi-synthetic
    - Mobil Syn S 10w40 semi-synthetic(no longer in production- 2000x2 replaces it)
    - Valvoline XLD Engine Armour 15w40 semi-synthetic

    Engine oil & OEM filter replaced ~7,500km since 30,000km.

    All the oils i've used seems to be exactly the same to me. No perceivable difference in start up, noise, rattling, revving, performance etc. Engine has never used oil to require a top up.

    Will use Mobil 2000x2 for the next 3 oil changes as I have 2 and a bit 5L litre bottles left. I hate having 3 or 4 different leftover brands of oil laying around. I would mix the leftover together if I had an old car Click here to enlarge

    In future will buy Mobil 2000x2 or Valvoline XLD Engine Armour, depending what is on special at the time.

    As I don't do track work, I personally think buying the correct grade of oil and changing frequently means that fully synthetic will not benefit me.

    ^ claims to be synthetic, but as I understand it very few oils are really are fully synthetic.

  10. #20
    OpelAus Enthusiast lithium's Avatar
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    Engine: Z18XE

    Current Oil: Nulon 10w-40 Synthetic

    Previous Oil: Shell 5w-40 Synthetic

    Feeling: you could hear some tapping from the valves with the 5w on startup in winter - switched to 10w and it is gone. Nulon is the only reasonably priced brand i've found that produces synthetic 10w-40?

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