| Answer | Crossword Clue |
|---|---|
| detonation | The premature combustion of fuel in an internal combustion engine, causing knocking |
| detonations | The premature combustion of fuel in an internal combustion engine, causing knocking |
| preignition | The premature combustion of the fuelûair mixture in an internal combustion engine |
| ignition | The process of starting the combustion of fuel in the cylinders of an internal combustion engine |
| ignitions | The process of starting the combustion of fuel in the cylinders of an internal combustion engine |
| injectors | (in an internal combustion engine) The nozzle and valve through which fuel is sprayed into a combustion chamber |
