What can not you recycle?
Glass, gas, and, oil
Used oils can and are recycled everyday. Just send them back to the refinery. They will filter out sediments and metal particles then mix directly into the incoming crude oil. The refinery does the rest.
Glass is one of the MOST recyclable materials there is. If not suitable for making new bottles or other containers it can be ground up and used as replacement for some of gravel in asphalt road pavement.