Quote:
Originally Posted by SenorFunkyPants
As a point of information, this was the reply I received from a technical enquiry I made to Mahle Clevite enclosing a number of images of worn S65 rod bearings (taken from the epic bearing thread) showing the typical wear pattern.
My question:
"Any idea on the wear presented would be great. Could using low octane fuel be a factor in what looks like excessive wear...the S65 engine does come with a anti knock ignition system."
Answer:
"Well, generally speaking, when you see heavy, accelerated wear on the upper
rod bearings, the cause is detonation. You can still see the machining
marks on the lower shells and I see no signs of abrasive wear caused by
contaminated oil" [followed by a discussion on detonation].
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Exactly, this has been dismissed by all the masses here, but IMO detonation is real.