This fuel efficiency improvement reference table shows the efficiency improvement for a range of old fuel efficiency values, assuming a new fuel efficiency of 15 km/l. Every figure is computed with the same engine that powers our Fuel Efficiency Improvement Calculator, so the numbers are exact.
| Old fuel efficiency | Efficiency improvement |
|---|---|
| 3 km/l | 400.00% |
| 6 km/l | 150.00% |
| 9 km/l | 66.67% |
| 12 km/l | 25.00% |
| 18 km/l | -16.67% |
| 24 km/l | -37.50% |
| 36 km/l | -58.33% |
| 60 km/l | -75.00% |
| 84 km/l | -82.14% |
| 120 km/l | -87.50% |
How to use this table
Find the row closest to your old fuel efficiency and read across to the efficiency improvement. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Fuel Efficiency Improvement Calculator for a precise answer.
Need a value that is not in the table? — the Fuel Efficiency Improvement Calculator does it instantly, for free, with the formula and a worked example built in.
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