| Answer | Crossword Clue |
|---|---|
| OCTANES | Anti-knock elements in motor fuel. |
| ETHYL | Anti-knock fuel |
| ETHYL | Old anti-knock fuel |
| Answer | Crossword Clue |
|---|---|
| OCTANES | Anti-knock elements in motor fuel. |
| ETHYL | Anti-knock fuel |
| ETHYL | Old anti-knock fuel |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.