Hi all,
The owner's manual of RX330 suggests the break-in period is 1000 miles and with the following guidelines:
- don't drive at a constant speed for a long time
- gentle on the brake until 300 miles
- don't race the engine
On the other hand, while searching the web, some suggests to vary the engine speed during the break-in period, even briefly up to the red line, just to let the engine experience different rev to allow piston rings to fit to the exact shapes of the cylinder walls.
I'm a bit confused, is it actually ok to drive on freeway say for half an hour during the break-in period?
I also read some suggestions to change engine oil right after the break-in period to clean up the dirty engine oil. However, the owner's manual doesn't say anything about it and simply states the first oil change is at 5K miles. I'm not sure which one I should follow.....
Any suggestions or tips about break-in period would be much appreciated! Thanks!!