Valvoline Synpower DX-1 Engine Oil 5W-30 & 5W-40 5L $29.77 ($9.77 after cashback) @ Supercheap Auto
Not sure if it is a deal.
Autobarn sells this for $64.99
Might be good if you missed the Castrol Edge deal last week.
Also 5W-40 for the same price $29.77:
Update: only available for online delivery.
Can combine with $49 free shipping.