The latest season Matador barbecues have either enamelled or stainless steel grills, hotplates and burners - all of which are rust resistant. Cleaning the BBQ after cooking is required to best care for your cooking surface.
Some previous years' models have cast iron burners which require a little more maintenance. Each time you finish with your BBQ you should clean the cooking surface and spray with canola oil to prevent rusting; Do not use olive oil, margarine or butter, however these can be used in cooking.