Seems like a good deal on Valvoline Restore and Protect Engine Oil. Usually near the $100 mark so quite a substantial saving.
This oil is highly regarded as being able to clean engine deposits as seen by many reviews online (including "The Motor Oil Geek" Lake Speed https://www.youtube.com/watch?v=-IDvx1LtqVM).
Also available in 10W-40 here: https://www.autoone.com.au/products/valvoline-restore-and-pr…
Not an all-time low ($49, earlier this year), and for most people, the $20 Gulf Western oil (https://www.ozbargain.com.au/node/899322) is probably a better buy unless you need API SP or a lighter weight..
should i buy for 6 months ahead or will it go off then?