Originally Posted By: Bill in Utah
Originally Posted By: tig1
You have to be careful with carbon build up around the rings with a OCI over 5,000 miles with dino, any kind.
Please..
Plenty of engines out there are going WELL over 5k OCI with conventional oils and have NO problems over the boogy man and his carbon build up on the rings.
And those engines go on and on with no worries.
And the guy you are quoting feels IN HIS OPINION that UOAs are useless (like a few others here).
If I have a engine with has OVER 350k miles on YESTERDAYS oils and its still going, another over 250k miles again on YESTERDAYS oils and its fine (and I could go on) where are all the ring deposits?
Back to the OP. While I think the oil did well, I'd prob back it down to a 8k OCI and you'll be fine. You are getting a excellent value with the oil!
Your engine will last just as long or longer than running a 10k OCI with someone elses favorite Koolaid...
Take care, bill
Bill,
Please don't get excited over this opinion of mine that if I used dino I wouldn't pass 5000 miles OCI. It's just my belief.
By the way congratulation on the very high mileage you have obtained on you engines. You must maintain them well to reach that level of longivity.