427435 wrote:
Sorry, but plateau honing (knocks the peaks off) has been in common practice at the OEM level for at least 30 years. Blame (or credit) EPA standards and mpg standards for that.
common practice 30 years ago? Puhlease.
10 years ago, yes, but not 30. the vette didnt go syn until the c5
From Mobil oil...
Is it true that new equipment needs a break-in period using conventional oil?
That is a myth. In the past, break-in was necessary to remove any metal flashing (called swarf) or abrasive material left inside the equipment after machining, as well as to allow engine valves and rings to “seat” properly.
Today’s equipment is built with much tighter tolerances, much improved machining, and under much cleaner conditions compared to equipment built 10 or 20 years ago. Current manufacturing technology does not require a break-in period using conventional oil.