View Single Post
      01-13-2020, 01:23 PM   #16
ZedsRedBaby
Colonel
1760
Rep
2,270
Posts

Drives: M440i Convertible
Join Date: Sep 2019
Location: UK

iTrader: (0)

I thought avoiding high (future) oil and fuel consumption was the main reason you should keep the revs down during break-in? It gives the piston rings and cylinder walls time to bed in, otherwise you will likely get a bad fit from imperfections in the manufacturing process.
Appreciate 0