I’m gonna go out on a limb and guess that the people with access to the CEO Program couldn’t care less about engine break-in.
it doesn't really matter as much anymore... unlike the old days with poor machining and cleaning, plus inferior materials, gentle driving was needed to make sure the motor has a good life
not any more
engines (japanese ones at least) come well machined, with modern metal alloys, and well cleaned before assembly... the low tension piston rings combined with factory filled synthetic oil in many cars makes them take way too long to seat in with gentle driving...
so what do you do? give it tough love
drive it like you stole it after you drive off the dealer's lot... don't red line it, but give it plenty of RPMs and heavy foot... do as much engine breaking as possible so vacuum can also help move the piston rings around... you're going to waste a lot of gas and burn oil those first 30-50 miles you're doing this... afterwards, you can chill out and drive normal... your engine will thank you for this as you broken it in very quickly and very well
I've done this with the last motor I've built, and I've done this on a skyactiv engine... hasn't burned a drop of oil way past 5000 miles when I did this, but on other babied skyactiv engines I've seen, it took well into 40k miles before it stopped really burning oil and truly broken in
my point? it's not a big deal, and whatever we learned from the old days don't really apply anymore... how do you think race teams break in their engines? sure, a race car motor is built very differently with exotic materials, but the break in principles remain the same..... surely they're going to drive a car around or strap it on a dyno and run it for gentle 3000 miles right? wrong... they run it hard for a couple of hours on the dyno right after tuning, and ship it... this method is tried and true, and I only learned/read about it about 15 years ago and was skeptical till I tried it 2 different times
