Originally Posted by dnewton3
Good data; engine looks very healthy.
I would advocate for stretching out the OCIs, or use a lessor cost lube. 4.6k miles on syn is a waste, as any dino could do the same and get the same wear rates.
My OCI is generally 5k miles, give or take a little. I use synthetic because this truck can see some pretty wide temp extremes. Sub freezing in the winter and over 100 in the summer. It also spends time off road in the desert in high temps and hauling a small travel trailer.
I agree that a good conventional would probably do it but I like the perceived better protection a synthetic can give me. A few years back I ran PYB in my Jeep Unlimited for awhile. The PYB had some of the best wear numbers ever with that 3.8L engine.