Manufacturer-documented fuel consumption for 16 275–280 kW Diesel generator sets — median 17.30 gal/h at full load, 9.25 gal/h at half load.
Compare 275–280 kW Diesel generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| AKSA APD-ULJ275 | 275 | 3.17 | 5.18 | 530 | 44.1 |
| Cummins/Onan 275 DFBF | 275 | 2.77 | 3.96 | — | — |
| Cummins/Onan C275 D2Re | 275 | 10.30 | 17.88 | 1400 | 35.9 |
| Cummins/Onan DFBF | 275 | — | 15.59 | — | — |
| Cummins/Onan DQAE | 275 | 9.51 | 17.30 | — | — |
| Everdigm EDG-275C | 275 | 19.28 | — | 1879 | 25.7 |
| Generac SD275 | 275 | 2.93 | 6.76 | 17 | 1.5 |
| Kohler 275REOZJE | 275 | 9.25 | 17.44 | — | — |
| MTU 6R0150 DS275 | 275 | 1.37 | 2.62 | — | — |
| MTU 6R1600 DS275 | 275 | 12.15 | 19.55 | — | — |
| MTU MTU 6R0150 DS275 | 275 | 11.28 | 18.41 | — | — |
| SDMO JS275UC | 275 | — | 16.80 | — | — |
| Cummins/Onan QSL9-G8 | 276 | 15.32 | 18.49 | — | — |
| Generac MMG320 | 278 | 9.01 | 17.91 | 1737 | 50.9 |
| Magnum MMG320 | 278 | 9.01 | 17.91 | 459 | 13.5 |
| Cummins/Onan QSL9-G4 | 279 | — | 16.11 | — | — |
Figures from each model’s own manufacturer documentation (spec sheets and manuals); runtime = documented tank capacity ÷ consumption at 50% load. Verify against the datasheet for your exact configuration.
Across 15 models with manufacturer data, full-load consumption runs 2.62–19.55 gal/h (median 17.30); at 50% load the median is 9.25 gal/h.
At 50% load, documented tank sizes give 1.5–50.9 hours (median 30.8 h) across 6 models.