Recycling Phelps Brothers believe in recycling as high percentage of waste as possible for example a vehicle will be split into the following: Engines All engines will be sent away and melted down to reuse the aluminium for making new engines. Engine oil: This is sent away to be processed. It is then used as an alternative to conventional fuels in the furnaces at power stations, heating tarmac and drying stone in quarries. Fuel: This is collected in the depolution area and will be recycled.