I use Ryco oil filters
and Castrol Edge 5w30
Same here, but it does depend on usage and were you live and even season. I'm in Adelaide (cold in winter 2C this morning 45C in summer) that's a big range
I've had 3 VE SS's 2 with L98's and ran 10W60 edge and they love it cold/hot all good, bought a MY10 SS with AMF with 9000kms, put 10w60 in it and rattle at startup(didn't car a lot as car was doing a 70km trip to work), but after that went with 5W30(we moved and car does a 5km trip to work(misses car never goes over 3grand). Thinking in summer of going 5w 40 edge
The 2 alloytecs I've had I run just 5w30 edge they seem to love it.
I'm a bit oldschool used to run 25w 50 in my 5Litre Holdens etc but modern engines seems to love thin oil.
I've always changed at 7500kms even the SS with stuff all km's and highway kms the oil was dirty at 7500kms.