Manufacturer-documented fuel consumption for 22 750–755 kW Diesel generator sets — median 48.30 gal/h at full load, 24.83 gal/h at half load.
Compare 750–755 kW Diesel generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Caterpillar C18 | 750 | 16.40 | 1.20 | 699 | 11.3 |
| Cummins/Onan DFHA | 750 | 25.89 | 48.87 | 207 | 2.1 |
| Cummins/Onan DQCB | 750 | 3.17 | 47.26 | 120 | 10.0 |
| Cummins/Onan DQFAA | 750 | 24.94 | 47.74 | — | — |
| Generac MD750 | 750 | 32.20 | 65.20 | 800 | 6.6 |
| Generac MD750 - GEM | 750 | 34.00 | 63.00 | — | — |
| Generac SD750 | 750 | 25.62 | 49.66 | — | — |
| Katolight D750FJX4 | 750 | 24.83 | 48.87 | — | — |
| Katolight D750FNX4 | 750 | 24.83 | 48.87 | — | — |
| Katolight D750FPX4 | 750 | 24.83 | 48.87 | — | — |
| Katolight D750FRX4 | 750 | 24.83 | 48.87 | — | — |
| Katolight D750FSX4 | 750 | 24.83 | 48.87 | — | — |
| Kohler GMKD750 | 750 | 22.45 | 44.12 | 2028 | 23.9 |
| MQ Power 750kW Containerized Diesel Generator Set | 750 | — | 54.71 | 900 | — |
| MQ Power EGC-750C | 750 | — | 14.45 | 375 | — |
| MTU 12V1600 DS750 | 750 | 25.97 | 46.18 | — | — |
| MTU 12V2000 DS750 | 750 | 1.37 | 2.62 | — | — |
| SDMO EXEL 1 X 750 UC | 750 | — | 8.51 | — | — |
| SDMO X750UC | 750 | — | 43.59 | — | — |
| SDMO XS 750 UC | 750 | — | 43.59 | 1000 | — |
| FG Wilson P900E1 | 750 | 23.30 | 15.85 | 212 | 2.4 |
| Cummins/Onan C1100 D5 | 751 | — | 53.36 | — | — |
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 22 models with manufacturer data, full-load consumption runs 1.20–65.20 gal/h (median 48.30); at 50% load the median is 24.83 gal/h.
At 50% load, documented tank sizes give 2.1–23.9 hours (median 8.3 h) across 6 models.