Bopop4 8,100 Guelph, Ontario Jun 11, 2012 #7 Engine break in was a thing in GT4 where running about 150 nmiles would give you a slight power increase, the power would stay until the oil wore down and then the engine would suffer a permanent slight loss of power after several hundred miles.
Engine break in was a thing in GT4 where running about 150 nmiles would give you a slight power increase, the power would stay until the oil wore down and then the engine would suffer a permanent slight loss of power after several hundred miles.
