Surprised no one has posted this yet, Castrol edge 5w30 10L for $74 works out to be almost exactly the same as the $36.99 for 5L deal earlier this month. (~$7.40/L)
Awesome deal, especially when you consider this is around the RRP for the 5L.
"Fully Synthetic, SL/CF, 10L. (3383426). 10 LITRE VALUE"
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Also Castrol GTX 15W-40 + Free Repco Oil filter for $22.99 (RRP for Standalone Oil is $35.99)
This is a great deal, but warning for people looking for a bargain.. You need to follow the manufacturer's recommendations and not just blindly buy oil for your car because it's cheap.
If anyone finds a great deal on Penrite 10tenths racing 10w-40 please let me know :)