It’s hard to say but with the amount of solids in used oil I’d be surprised if you went 10 miles. There are a lot of used oil burners around and the tray under them is filled with nasty carbon looking gunk They filter it before burning. Oil is a lot thicker than diesel as well, the injectors would not function properly.
Look for abandoned trucks with side tanks, they should have plenty of fuel.
He plans to sabotage 10 or twenty cars on the road, illegal home fuel oil is the least of his problems.