

What oil?
I have a new long block in my 1997 4.0 Wrangler. I’ve been running 10W30 STP Conventional Oil, but they stopped carrying it at my local parts store. Because of the new long block, I really don’t want to switch from Conventional to Synthetic. I am looking into ordering conventional oil online. Do y’all have any specific suggestions? I was looking at this Castrol GTX 10W30 Conventional Oil, but it says it’s premium… which I don’t think I need. Pls advise!
Thanks