View Single Post
      05-23-2012, 11:59 AM   #1
MPowerrF10
Captain
21
Rep
686
Posts

Drives: 2014 F06 M6
Join Date: Apr 2012
Location: NJ

iTrader: (2)

M3 E9X breaking in at 50k miles

So a BMW mechanic told me these engines truly break in around 40-50k miles. Anyone else ever hear this? Is it even remotely true..