Hmmm, I've done that before as well. And after a good drive, the oil is still above the fill line, but eventually, it always drops for me. My oil consumption levels are definitely a result of how I drive. Back and forth to work I get "normal VX oil consumption" but when I go over the mountains with lots of hard, uphill highway driving, its a lot worse.
I just can't imagine with all the mechanics and tech heads out there, that someone hasn't found the EXACT cause of this. I mean, it must be a defect, that would be the only thing that explains why it hasn't been fixed....
Bart