Originally Posted by 91grayDET 
That may be true. BUT i said overrevving AND lack of maintenance.
So if you constantly hit redline with old oil, guess what happens?
High readline, is high heat. From what I've read conventional oil tends to break down, so if you don't change it often, I can image sludge... This is why synthetic is a better choice for cars that see the redline a lot...
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