Plastic #2 (HDPE) Curbside Recycling Any plastic bottle or jar can be recycled in your curbside recycling container. Please have them clean and dry. Lids are okay if attached. Help Prevent Litter Plastic #2 is a lightweight material that easily finds its way into the environment, where it can leach toxic chemicals. Dispose of it properly to prevent it from becoming litter. Empty Motor Oil Containers are Hazardous Waste Even if an empty, cleaned motor oil container is marked as HDPE #2 plastic, it is still hazardous waste. Learn how to dispose of empty motor oil containers. Did You Know? What Plastic #2 Can Become Plastic #2 can be recycled into new plastic jugs, plastic lumber, patio furniture, flower pots, buckets, recycling bins, benches and fencing.