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Gulf Western SYN-X 3000 10W-40 Semi Synthetic Engine Oil 5L $29.99@Autobarn
Posted 9/18/2026

Gulf Western SYN-X 3000 10W-40 Semi Synthetic Engine Oil 5L $29.99@Autobarn

Automotive10W-40Engine Oil

If you're due for an oil change, this is about as cheap as it gets — Gulf Western SYN-X 3000 10W-40 semi synthetic is just $29.99 for 5L at Autobarn.

  • Semi synthetic, API SN/CF rated, and suits petrol, LPG and lightly loaded diesel engines (even turbo and supercharged)
  • One long-term user reports no issues after years of use, so it's a solid budget pick
  • Limited to 2 per customer and staff are reportedly strict on this — order under your own name to avoid collection hassles
  • Tip: You can price beat at Supercheap Auto for slightly cheaper if you'd rather shop there

At this price, grab a couple as spares while it's cheap!

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