Nomad Willy
Guru
My 37hp boat engine dosn’t produce much used oil. Most of my oil oil comes from my cars and PU and Suburban. Have two 5gal buckets and periodically take them to the waste site. No problem.
Tom, when I suggested the value of the OP`s oil might increase I was thinking of more immediate possible difficulties transporting oil from middle eastern sources rather than "peak oil",while trying to avoid politics and upset the Mods.Oil is not in short supply. Peak oil a now proven myth. One can always state oil is short term finite, as did Jimmy Carter, but the oil geologists well know otherwise.
I used to do dump a few gallons of used oil into my tanks (640 gallon total boat capacity) once in a while to feed the twin Lehman 120s thinking it couldn't hurt the Simms injector pumps. Maybe, maybe not. It was not a regular practice by any means. I would not do it to the high speed Yanmar 6LPA I have now, and the instruction which came with my Floscan said it is a no-no for that instrument.
About 60 miles to the West of you is Gillis Auto Center in Shelton.
That shop used to heat the service bays with a used oil heater.
https://www.gillisautocenter.com/dealership-map
It might be worth a call if you can transport or can make arrangements.