I found two drums that I can have, on contained non-chlorinated brake cleaner and the other contained Sunoco Race Fuel, I am guessing that is a high octane gasoline. Can either one of these be burned out successfully? The gasoline one was in better shape, could that be burned out and cleaned okay? Also the lids on all of these are sealed type, is there any way to pop the lids off and use them as the UDS lid? I do have a dome lid that I plan on using but just wondering if I can use either.