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

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  • Shell

    6 4.92%
  • Castrol

    41 33.61%
  • Nulon

    14 11.48%
  • Mobil

    19 15.57%
  • Penrite

    19 15.57%
  • Home Brand

    0 0%
  • Car manufacturer specific Oil

    4 3.28%
  • Other

    19 15.57%
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  1. #31
    OpelAus Enthusiast Hoss's Avatar
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    Mobil 1 10w-30 in my Z20LER

  2. #32
    OpelAus Participant
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    Thumbs up

    Motul Turbolite 10w-40. (originally recommended to me by Greg Murphy's engineer).
    Opel cars n' Fender guitars

  3. #33
    OpelAus Post Whore gman's Avatar
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    Royal Purple or Motul always for me. For the Z20LEx, 10W40 is the recommended weight...
    Epsilon Renntech
    2003 Astra SRi-T - The Phantom
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    Borg Warner EFR7163 & EFR9180
    Tuned by Scott @ Insight Motorsports

  4. #34
    OpelAus Enthusiast digifish's Avatar
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    Astra CDTi

    Since new -

    Shell Helix Ultra 5W-40

    I supply to the dealer on services.
    Petrol is for the weak
    Click here to enlarge

  5. #35
    OpelAus Participant cyclonic's Avatar
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    I've recently changed to Castrol Edge Sport 5W-30. Also used the Liqui-Moly Engine Detox, dropped out the old oil, added the Castrol along with Liqui-Moly Engine Protect.
    The car has never run as well!

  6. #36
    I'm new here, please be nice shEp187's Avatar
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    Engine: Z18XE

    Current Oil: Nulon 10w-40 Synthetic

    Previous: GM brand I think.

    Difference: Lower rev's when idling, just feel's smoother.

  7. #37
    OpelAus Enthusiast delemonte's Avatar
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    Engine: Z20LET

    Current oil: Castrol GTX 3 - 15w40

    Previous/alternate oil: Castrol Magnatec - 10w40

    Feeling: I alternate between these two oils between Summer and Winter... I change my oil every 5,000kms as has been done on the car since brand new. I replace with a Ryco oil filter every 5,000kms also.




    Engine: Z18XE

    Current oil: Castrol GTX 3 - 15w40

    Previous oil: Castrol GTX 3 - 15w40

    Feeling: I change the oil every 7,500kms and replace with a Ryco filter every 15,000kms

  8. #38
    OpelAus Owner hazrd's Avatar
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    oil change update:
    C25XE

    Previous oil: penzoil semi-synth

    Current oil: castrol magnatec 10w/40

    Feeling: no more tap on cold start. heard that the "sludge" that hangs at the top (apparently protecting it) isnt so good for it so not sure what i should go for next (lookin to change it again in about a months time)
    Sure, we dont have to worry about viking raids or scurvy anymore, but instead we make a daily routine of sitting in flimsy, fibreglass (or metal) boxes full of gasoline which are propelled in opposing directions on the freeway at velocities matching that of low flying aircraft.

    This is a roundabout way of saying that cars are dangerous....

  9. #39
    OpelAus Participant
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    Click here to enlarge Originally Posted by hazrd Click here to enlarge
    oil change update:
    C25XE

    Previous oil: penzoil semi-synth

    Current oil: castrol magnatec 10w/40

    Feeling: no more tap on cold start. heard that the "sludge" that hangs at the top (apparently protecting it) isnt so good for it so not sure what i should go for next (lookin to change it again in about a months time)
    You need to try the Castol Edge 0W-40. Used it on my previous cars (Magna and Vectra). Definitely no tapping, and car feels much lighter than Magnatec, and engine sounds just as smooth as the Magnatec Not cheap at $70 per 5L, but well worth it.

    My Calibra uses Castrol Edge 5W-30, because it is the type they recommend for Turbo cars. Currently on special for $30 for 5L from the usual $50 at Supercheap. I assume it is not as protecting as the 0W-40, and being thinner engine is noisier.

  10. #40
    OpelAus Owner hazrd's Avatar
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    http://www.castroledge.com.au/product/product_0w40.php
    This is Castrol’s best , full synthetic, low viscosity technology. Castrol EDGE Sport 0W-40 is recommended for modern and high revving technology engines in performance sports cars, luxury sedans and turbo-diesels.
    looks like its designed more for newer cars??????
    Sure, we dont have to worry about viking raids or scurvy anymore, but instead we make a daily routine of sitting in flimsy, fibreglass (or metal) boxes full of gasoline which are propelled in opposing directions on the freeway at velocities matching that of low flying aircraft.

    This is a roundabout way of saying that cars are dangerous....

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