I have heard on the Charger Forums that the computor does adjust to your driving manners. But if you change your driving habits it will change and adapt. So for the best times... run it hard a few days before you do your 1/4 mile times for the best results I would break it in with dino oil, then switch to Mobil1 syn. I too would be gentle at first, then vary the RPMs up and down the scale. Break her in easy and increase with each 1000 miles a little more go go.