Yeah, I am. I know of another on PriusOnline.com that is too. Frank Hudon in Canada? Can't remember exactly. I've let my Prius sit on my level driveway many times and the dipstick is always midway between the 2 dots.

I thought it'd show low, but it seems to be right in the middle of the dots.

Before, when I'd put in 3.5 maybe 3.8, the oil level tended to be right at the upper dot. No noticeable MPG change or performance or anything, just an easier way to change oil and not have half-full (half-empty if yer a pessimist!) lying around.