| Clue | Source | Date |
|---|---|---|
| Adds power to, as an engine | New York Times | 12 Jun 2025 |
| Adds horsepower to | Universal | 09 Nov 2023 |
| Adds horsepower to, and a hint to the starred answers' hidden words | Universal | 10 Nov 2020 |
| Makes more powerful | LA Times Daily | 06 Mar 2019 |
| Makes more powerful | The Washington Post | 06 Mar 2019 |
| Makes more powerful | ||
| Adds horsepower to | New York Times | 11 May 2018 |
| Adds horsepower to | ||
| Adds power to a car | ||
| Gives pep to |