Quick answer
This page uses a published test for Sea Ray DAC 320 with 2 × Mercury 6.2L MerCruiser. In that table, the best published economy point is around 4.7 kn and 14 L/h.
Engine/configuration: 2 × Mercury 6.2L MerCruiser
Source: manufacturer test
Source: manufacturer test
Published fuel-burn table
| Speed kn | Fuel L/h | L/nm |
|---|---|---|
| 2.3 | 7.6 | 3.35 |
| 4.7 | 14 | 2.98 |
| 6.7 | 21.2 | 3.17 |
| 8 | 32.6 | 4.07 |
| 9.3 | 52.6 | 5.66 |
| 10.3 | 78 | 7.6 |
| 14.3 | 102.6 | 7.2 |
| 27 | 106.4 | 3.94 |
| 32 | 140.1 | 4.38 |
| 36.1 | 178.3 | 4.94 |
| 36.7 | 204 | 5.56 |
Calculate cost per mile
Use the calculator and change the fuel price. If you choose this boat in the picker, SkipperCalc adjusts fuel burn inside the tested speed range.