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Old 11-20-2012, 05:47 PM   #3681
Scooby Newbie
Member#: 163448
Join Date: Nov 2007
Location: New York
2013 Wrx


Originally Posted by luan87us View Post

I have to ask you what do you mean by hard break-in?
Some people think you should push your car really hard initially to seal the rings. Some say you should treat it delicately and vary the RPM ranges. Some say all the breaking isn't necessary because the factory machined clearances are so close compared to cars even 10, 15 years ago.

After a ton of research I don't believe anyone knows for sure what to do when you first get a car.
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