No. Every Primo Ceramic Grill is ready to use immediately. Do not apply oil or any other substance to the interior of the exposed ceramics. After extended use of your Primo the interior will develop a build-up of black residue called creosote; it is the same substance that develops in a wood fireplace chimney over time. Prior to cooking and while the grill is cool, you can use a soft bristle brush to remove most of the residue.