I don't know the answer to your question, but it certainly is an interesting point. I know that during my VIP Plant Tour in Spetember 2011 I did see them crank the speed up to about 80 MPH with the rear tires on rollers near the end of the entire process. And they did not seem shy about running it up to 80 quickly if my memory is correct.How much break-in is already done on the engine even before it is married to the chassis? I thought they ran these engines on stands to get some wear and seating on them, and then drained the oil (to get the metal filings out). Then they put the engine on the chassis a few weeks later. Also, I thought this was why it is no longer required to change the oil the first time until a regular service interval.
Am I incorrect in any or all of the aspects above?
I have written this before but if you have an automatic, this is the way to break it in.....Pretty good idea!
The first time I asked for something like that 3-4 months ago (when I didn't know how to force all eight cylinders to run during the break-in period) was, as best as I can recall, the first time you told me to stop overthinking things. Now you have the perfect solution. LOL.I have written this before but if you have an automatic, this is the way to break it in.....
1. Take a long trip
2. Take it up to 70 and put the cruise control on
3. Put it in M and start using the paddles
4. Every 10 - 15 min, shift between 6, 5 and 4, and back up....
Done....it's the rpm that matters, not speed.....this also kills AFM for breakin......
You were a luck one for sure, and plenty of others doing the same have had no issues so thats proof your not guranteed to use oil....but the hard break-in is assurance the rings will seat correctly.
I also wanted to point out that it was mentioned U-joints and wheel bearings, etc would need break-in. The C7 has no u-joints in any part of the drivetrain and the sealed wheel bearings are a cartridge type assy and will never be more perfect than when new, so that does not apply either.
Ours will head northeast through West Virgina...I'm sure we will seat them just fine.....on FRIDAY!!!!Mine will get driven back to Florida from Bowling Green via the TN/NC/GA mountains. I'm pretty sure everything will be bedded, run in and seated quite nicely before the first oil change