| for lubrication | 14 | purpose |
| between its moving parts | 6 | location |
| for cooling down the engine | 4 | purpose |
| engine → need → oil | 23 |
| engine → require → oil | 15 |
| engine → rely on → oil | 4 |
| negative | neutral | positive |
| 0.229 | 0.630 | 0.141 |
| Raw frequency | 42 |
| Normalized frequency | 0.427 |
| Modifier score | 0.988 |
| Perplexity | 123.300 |