Manufacturer-documented fuel consumption for 7 900–905 kW Diesel generator sets — median 59.70 gal/h at full load, 32.44 gal/h at half load.
Compare 900–905 kW Diesel generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Cummins/Onan DQFAC | 900 | 32.44 | 63.48 | — | — |
| Cummins/Onan QSK23 | 900 | 17.83 | 29.85 | — | — |
| Generac MD900 | 900 | 42.29 | 77.90 | 950 | 5.9 |
| Generac SD900 | 900 | 39.63 | 74.50 | — | — |
| Kohler GMKD900 | 900 | 32.76 | 59.70 | 3475 | 28.0 |
| MTU 12V1600 DS900 | 900 | 29.19 | 54.82 | — | — |
| Simson-Maxwell SPW880 T6-T1 | 901 | 25.94 | 59.17 | 6000 | 61.1 |
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 7 models with manufacturer data, full-load consumption runs 29.85–77.90 gal/h (median 59.70); at 50% load the median is 32.44 gal/h.
At 50% load, documented tank sizes give 5.9–61.1 hours (median 28.0 h) across 3 models.