| Answer | Crossword Clue |
|---|---|
| DIESEL | Kind of engine fuel |
| AIRINTAKE | Opening of a fuel-burning engine |
| GAS | Engine fuel |
| AIRGAS | Engine fuel |
| PETROL | Engine fuel |
| DIESELOIL | Some engine fuel |
| DIESEL | Engine or fuel |
| AVGAS | Fuel for piston-engine airplanes |
| AVGAS | Fuel for piston-engine aircraft |
| COALED | Provided fuel for an engine |
| NATIONWIDEGASOLINE | Engine fuel sold all over the country? |
| DIESELIZE | Equip with an engine using oil as fuel. |
| ANTIMATTER | Fuel for a warp drive engine on "Star Trek" |
