[Koizumi]

Since oil threads are prolific and polarizing… Forgive me but I had to ask:

Anyone running 20w-50 Castrol GTX Classic? This is a new offering for Catless (I run Catless) classic cars with high ZDDP.

I just switched to it since it took 2800 miles for Driven GP-1 to finally stop leaking (I change oil at 3k no matter what). Prior to this I was a Brad Penn guy for years.

PS. I run 20w-50 exclusively cuz where I dwell, it’s hot af!