Originally Posted by Modshack

Yeah...Knowing guys who worked in Factory Tech centers, they were often young guys working their way up to be field reps. May or may not be "absolute" on that one..



Didn't you hypothesize that all the break in occurs in the first 20 minutes??
I don't think anyone has proved that synthetic is "bad" one way or the other, given the number of high end cars that are factory filled with Syn juice. That, and the fact that crosshatching can often be seen on high mileage cylinder bores would leave the whole break-in theory in question.