If this becomes common I'm finding myself a used Land Rover diesel, price be damned (to a point) and I'll haul used oil away for 1/2 what the other guys charge. If I set this up right it could turn a tidy profit.
Matter of fact it might be time to sell the house and buy that used 45' custom bus used by Penske as a travelling house. I've seen it come u for sale twice now, at around $45k each time. Seems too cheap but w/e.