Dealing with Stale Gas BEFORE dropping the Tank (Please Review and Comment) (Page 2/2) theogre JUN 30, 01:59 AM "3. Pump out the stale gas into a 5 gal gas can for drop off at hazmat disposal. If not empty, continue with second gas can." Many places Won't take Gas at Home HAZMAT drops. Many won't take other HAZMAT or limit the amount. Call whatever gov or org setting up these drops. Do Not mix gas and other chems w/ engine/trans oil to be recycled or burn either. Side note: DIYer making oil burners can find big trouble w/ city to state and fed "epa." In many places can't install a real used oil burner often costing Thousands of $ to try to meet EPA regs. sourmash JUN 30, 09:33 AM Used oil: some people with wooden 2x trailer decking pour the old oil on the decking to soak into the wood as a preservative.