I replaced the oil on my mom's Prius today, which is 3200 miles or so since I replaced it last. The car only takes 3 quarts of oil, but only drained a little over 2 quarts.
My jeep, on the other hand, takes 4.5quarts of oil, and drains 4.5quarts when I replace it.
I use the proper oil in the prius so I don't see why so much of it would burn off. Is this normal for this car, or should I be worried?