Dipstick measuring...it's catching on! Mine shrinks until I put more oil in, then it gets longer again.
But seriously, You might want to check the o rings. And the oil pan gasket. Can you tell where it's leaking? I know that's an incredibly dumb question, but if it's not leaking it, I'd say it's burning it. I don't have to wonder about mine. It's leaking from multiple orifices. This wasn't a trick question, was it??