This is Household Hazardous Waste.
Used motor oil (max. 25 gallons) can be dropped off at any household hazardous waste collection site. Motor oil can also be taken to the hazardous waste facility at the Ada County Landfill (no quantity limits at facility).
Up to 2 gallons of used oil can be collected curbside each week. The 1-gallon containers must be translucent and labeled "Used Oil" to be accepted. Place the containers next to your trash cart. DO NOT place them in your trash cart.