Certified Oil Co ← View details 1402 West Main Street, Zanesville, OH 43701 +1 740-453-6662 certifiedoil.com Suggest an Edit Name* State* Locality* ZIP* Street address* Phone* Website Opening hours Sunday: 07:00 am — 10:00 pm Monday: 05:00 am — 11:00 pm Tuesday: 05:00 am — 11:00 pm Wednesday: 05:00 am — 11:00 pm Thursday: 05:00 am — 11:00 pm Friday: 05:00 am — 11:00 pm Saturday: 06:00 am — 11:00 pm Your comments * — Required information