That could be it too...my commute to work is between 32 and 25 miles depending on which route I take, that's probably plenty of time for the oil to get hot enough for the crap to boil off.
Vs. someone who has a 5-mile commute to work and never sees their oil level drop.
Originally posted by Blue Streak:
My car burs at least a quart every oil 3000miles. Mostly evident though after a highway run where the oil gets hot enough to boil off the water and crap and show my true oil level.