| Clue | Source | Date |
|---|---|---|
| Kerosene | Wall Street Journal | 18 Aug 2023 |
| Kerosene cousin | The Washington Post | 21 Dec 2019 |
| Kerosene cousin | LA Times Daily | 21 Dec 2019 |
| Lighting fuel of old | Newsday | 01 Sep 2017 |
| Old lamp fuel | New York Times | 21 Jul 2016 |
| Old lamp fuel | ||
| Kerosene | ||
| Kerosene | ||
| Kerosene | ||
| Kerosene. |