- Jun 16, 2003
- Franklin, OH
I have an '01 GMC Sierra 4X4 with the 5.3L. I am debating between Amsoil and Mobile 1. I am also concidering the 0W-30 but am a little leary of it and leaning towards 10W-30. I would like to maximize my extended drain intervals. What oil filter? K&N or Mobile 1?