BUTANE
| Date | Clue |
|---|---|
| 2025-12-18 | Fluid for a lighter |
| 2022-06-19 | Lighter fluid |
| 2012-11-23 | Lighter compound |
| 2012-06-13 | Zippo filler |
| 2012-01-09 | Gas in lighters |
| 2001-12-03 | Cigarette lighter fill |
| 1999-04-16 | Lighter fill |
| 1998-06-20 | Fuel gas |
| 1997-12-19 | Barbecuer's supply |