| Vehicle | Before Kiko | After Kiko | Increased % mileage |
| Toyota Camry | 5.8 | 8.3 | 43 |
| KIA Optima | 8.3 | 9.1 | 10 |
| Honda Civic | 10.0 | 12.9 | 29 |
| BMW 323 i | 9.1 | 10.9 | 20 |
| BMW X5 SUV | 7.1 | 9.1 | 28 |
| Austin Mini | 9.3 | 11.4 | 23 |