| Similarity | Rank | |
|---|---|---|
| CNG | 0.881 | 43143 |
| diesel | 0.819 | 8085 |
| petrol | 0.803 | 12735 |
| Petrol | 0.794 | 58896 |
| fuel | 0.789 | 1992 |
| gas | 0.773 | 1338 |
| Gas | 0.757 | 8205 |
| E85 | 0.755 | 75418 |
| propane | 0.749 | 19839 |
| LNG | 0.747 | 21041 |
| Propane | 0.741 | 57643 |
| gasoline | 0.741 | 8864 |
| biodiesel | 0.736 | 28801 |
| gas-fired | 0.733 | 70372 |
| diesel-powered | 0.724 | 93471 |
| biogas | 0.724 | 44510 |
| kerosene | 0.713 | 35544 |
| liquefied | 0.711 | 42301 |
| Biodiesel | 0.711 | 63631 |
| unleaded | 0.700 | 68345 |
| boilers | 0.698 | 25056 |
| refrigerant | 0.697 | 36320 |
| refrigerants | 0.695 | 92454 |
| refuelling | 0.692 | 68122 |
| cogeneration | 0.690 | 76666 |