Originally Posted By: Bill in Utah
Originally Posted By: BuickGN
Originally Posted By: Bill in Utah
Also *if* of the cause of the rings failing WAS the oil
why did not the other 3 cylinder's rings have issues?
Stevie, teardowns and measurements only are valid for engines that have run a certain type/brand of oil.
Just like UOAs...
Bill
Is this aimed at me? If so, there's a lot of [censored] in there.
It was aimed at the recent mindset that is around here.
It has ALWAYS been that UOAs are useless if any other brand or type of oil than what you are pushing looks good.
Same showing up here. If this engine was running Mobil 1 and had the SAME problem and Stevie posted the photos up, people would be JUMPING to post the "LOOK! SEE HOW CLEAN A ENGINE IS WITH MOBIL 1!!!! (and ignore the ring issue which should be)
But since it is a "cheap" oil like QS we get that QS is a poor oil. AND LOOK, the RING ISSUE PROVES IT..
Take care, bill
I understand your point completely. I think UOAs are valuable in a lot of ways, just not for guaging "normal" engine wear no matter what the oil. I still have a sample with the ACD in it from a year ago. Decided not to send it off because the oil was changed at 5,000 miles, the engine new and not abused, and I don't believe what the wear metals due to my experience with my GN and UOAs.