Posted by Vicki (La Manzanilla Hermosa) on July 31, 2019, 8:56 pm, in reply to "Used motor oil"
I asked the Delegado about this today. He said the Pemex nearest us (on Highway 80 near the intersection with Highway 200) accepts it. Ask one of the attendants.
Also, he said that sometimes local woodworkers use it to treat wood.