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Catrol GTX Ultraclean 15W-40 Engine Oil 5L $12.99 (RRP $41.99) (Max 2 Per Customer) + Delivery ($0 C&C) @ Autobarn


These are back in big discount, although not as big as in past (usually big discounts been around $9.99) But hey way better than normal RRP.
You can get SCA price beat too, SCA offers 5 L. I am gonna buy one just in case need to.

New Synthetic technology to help extend engine life

There is a maximum order quantity of 2 per customer. Any orders placed with a quantity greater than 2 will be cancelled and refunded.

Castrol GTX is one of the world’s most trusted engine oils.

The modern world creates difficult challenges for engines. Poor fuel quality, heat and tough driving conditions can all lead to sludge formation that potentially shortens engine life. Sludge is a sticky deposit that builds up in an engine’s vital oil-ways and it can prevent oil from protecting the engine.

Castrol GTX Ultraclean’s synthetic technology has superior performance. Its unique Double Action formula cleans away old sludge, and protects against new sludge formation, giving you more control over today´s challenging conditions.

Help extend the life of your engine with Castrol GTX Ultraclean.


Castrol GTX Ultraclean 15W-40 is suitable for use in automotive petrol and diesel engines where the manufacturer recommends an ACEA A3/B3, API SN/CF or earlier specification 15W-40 lubricant.


Castrol GTX Ultraclean 15W-40:

Provides 50% superior sludge protection compared to tough industry standards*
Advanced protection against viscosity loss and thermal breakdown
Superior protection against high temperature deposits
Premium quality base oils and anti-wear additives that help extend the life of your engine
*50% cleaner than the industry standard as measured in the API SN Seq. VG Sludge test

Industry Specifications:


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  • -1

    So is this anything special?

    • It's just under 13 dollars for 5l semi synth 15w-40 from a reputable brand… Looks to be a good price, no?

      • i don't know why i have this perception of 15w-40 is mineral oil but after checking their website, it does say "TYPE Synthetic Technology"


        • Yh I thought this was mineral at first too but I remember reading somewhere castrol reformulated/re-packaged a lot of their products including some magnatec as full synthetic and this as synthetic/semi synthetic.

          Not sure what it actually means and how much of it is synthetic etc but I picked up some gulf western synx 3000 so gonna pass on this :/

      • Yes it is

    • +1

      Yes it is special ofcourse .

      unless you really expect you wanting to pay full price (~40+ AUD).

      Its not some cheap brand, Castrol is on PAR with top Engine Oil brands in the World.

      15-40 5L engine Oil Semi Synthetic Oil, at this price is pretty good value, Even try looking up cheap brand 15w-40 oil 5L you wont find under $15 usually.

      I got mine today from SCA price beat, and only paid $4 for it.

      1. Make a new club membership account (pay $1 online, or instore $0) —-> Get $10 store Credit
      2. Ask SCA to price beat it instore (assuming you only are buying 1 or 2 of these.- Will Only Cost you $3 here.