Castrol GTX Ultra Clean Engine Oil 15w-40 5 Litre $15.95 @ Bunnings

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[Deactivated] on 09/06/2018 - 11:12 bunnings.com.au (363 clicks)
Last edited 10/06/2018 - 03:15 by 1 other user

Poor fuel, heat and tough driving conditions are factors you can’t control that cause sludge, varnish and carbon to form inside your engine, potentially shortening its life. Castrol GTX Ultraclean is our cleanest GTX ever. Its Ultraclean synthetic technology cleans away old sludge, and prevents new dirt from forming 50% better than industry standards.

• 15W-40 API SN/CF
• Superior sludge protection for greater reliability in modern vehicles
• Advanced protection against high temperatures & stresses
• Anti-wear additives extend life of engine

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  bm on 09/06/2018 - 12:33

  I had to dig into the MSDS trying to find if this is a pure synthetic or semi synthetic and it wasn't easy to find

  This oil's MSDS:
  https://msdspds.castrol.com/ussds/amersdsf.nsf/Files/8B53F974EB915D4A8025829F0052A540/$File/11356105.pdf
  Section 3 states "Highly refined base oil"

  Compare to a 0w30 oil's MSDS
  https://msdspds.castrol.com/ussds/amersdsf.nsf/Files/014CB64969FCCDEE802580570052A27A/$File/11138348.pdf
  where section 3 states "Synthetic base stock"

  Any oil chemistry experts able to chime in here? Is it really a "Synthetic"?

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    antik on 20/06/2018 - 20:32

    Semi-synthethic mate. Still a great oil for older (10+ years) cars

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  smurfy on 09/06/2018 - 18:29

  Thanks bought 2. I have an oil expert at work who's job was to run a lab.
  He swears on replacing oil in a car every 5-6k and buys pretty much stock standard oil. Says there is very to no difference…
  Think the one he prefers is magnates.

  Anyways I think that for my 10 yo car it will do the trick for my next 5k oil change.

  • 

    inherentchoice on 11/06/2018 - 11:32

    I think there is a massive difference between synthetic versus mineral oil. Check out this video where an engineer looks at the data and does a test…

    https://www.youtube.com/watch?v=tYkg0oDUXs8

    The major benefit here is that additives tend to break down over time, so synthetic oils will maintain their original viscosity properties much better throughout the engine oil drain interval versus conventional oils.