My '02 has been using about 1 to 1.5qts/3000mi, but I've only got 9800mi on it so far. Have been using synthetics, mostly amsoil & royal purple 5w-30. I will be changing to conventional/dino 10w-30 (which is what the owners manual recommends for the 2002 3.2L) from here on out. Synthetics are just not worth the $$ for 3000mi oil change intervals.
Joel