Years a go I used to pick up waste oil then deliver to a refinery in North Vancouver, way back then I got a $1.00 a gallon sometimes less depending on moisture content.



On every load coming into the refinery they took a sample to run in the lab to check how much moisture content the oil had. This was all done during off loading the oil, with a check printed and signed alway waiting for me as I left the refinery.

Now I have my own waste oil fired hot water boiler, the hunt for used oil is on again, anyhow my point is there maybe some market for used oil. Plenty of shops and car washes using these waste oil heaters driving up demand for used oil.

What is even better you do not need a pump, just use the vacuum from your intake manifold to draw the liquids into the tank your using to haul; your oil. Only works from a gasoline engine, diesels to not make vacuum.