Ford use a lot of castrol world wide,
https://www.castrol.com/en_au/austra...l#tab_5w-30-a5
Penrite:
https://penriteoil.com.au/products/full-synthetic-5w-30
In the end, everyone has their favorite brand.
Also, look into using C2/C3 oils. There are people on this forum that have used eg. Nulon C3 religiously and swear by them.