Supercheap Auto have the 4L Nulon 5W-30 Full Synthetic Engine Oil for $24.59 in case you missed out last time https://www.cheapies.nz/node/17543
This supposedly matches the lowest price ever! Available in store and online with free pickup or $4.95 delivery.
"Nulon Full Synthetic 5W-30 Long Life Engine Oil suits the following makes of vehicles: Holden, Toyota, Subaru, Mazda, Ford, Honda, Hyundai, Mitsubishi, Kia, Suzuki, Lexus, Isuzu, Jeep, Chrysler, Daewoo, HSV, Citroen and Chevrolet."
Supercheap(ies) tip: Supercheap Auto sometimes hide their cheap oil filters in the "parts guide" tool (may need page refresh after link)
For example a common oil filter for a Honda Jazz is almost half price in the parts guide tool:
Sakura C-1614 oil filter is $8.99 with free shipping (no pickup)
Ryco Z411 oil filter is $16.19 with $4.95 shipping (free pickup)