| Clue | Source | Date |
|---|---|---|
| Fuel dispenser | Premier Sunday | 23 Jul 2023 |
| Fuel dispenser | Newsday | 27 Nov 2022 |
| Premium source | Wall Street Journal | 18 Mar 2020 |
| Service station sight | Thomas Joseph | 11 Jul 2019 |
| Car tank insert | Premier Sunday | 22 Oct 2017 |
| Fuel dispenser | Premier Sunday | 24 Apr 2016 |
| Where to go when running on empty | USA Today | 23 Nov 2015 |
| Where to go when running on empty | ||
| Regular dispenser | ||
| Shell dispenser | ||
| Fuel source |