Many engines and mechanisms need lubricant oils to function. Around half of all purchased lubricant oil will ultimately become waste oil. The rest is lost during use, or through leakage.
Waste oils are considered hazardous waste and have some dangerous properties. One litre of waste oil can contaminate one million litres of water. Waste oils in rivers, lakes and streams threaten aquatic life. Also, if waste oils are left on the ground, they can severely contaminate soil.
Everyone, including industries, consumers, and garages have an essential role to play in the recovery of waste oil. They must make sure to hand waste oil over to authorised collectors and avoid dumping it at all costs.