I would like to know as well, I'm looking into leveling as well. And looking into a dyno tune as well, but this will definitely bring down my MPG, so I'm hesitant lol
Looks > MPG, though, right? lol
17.5 to 17.9, all highway. ~240 - 300 miles per week. 90MPH+ most of the time except while off the highway ofc.
No S mode on highway, when I get off the highway I go into S mode or stay in Drive with auto start/stop off.