Manufacturer-documented fuel consumption for 28 100–105 kW Diesel generator sets — median 6.96 gal/h at full load, 3.80 gal/h at half load.
Compare 100–105 kW Diesel generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Caterpillar D100 | 100 | 3.57 | 6.00 | — | — |
| Caterpillar D100 GC | 100 | 8.61 | 14.90 | — | — |
| Caterpillar D100-6 | 100 | 3.57 | 6.00 | — | — |
| Caterpillar XQ100 | 100 | 4.33 | 7.11 | 634 | 38.7 |
| Cummins/Onan 100 DSGAA | 100 | 10.04 | 2.40 | — | — |
| Cummins/Onan C100 D6 | 100 | 0.97 | 1.81 | 984 | 267.4 |
| Cummins/Onan DGDB | 100 | 1.00 | 0.63 | 25 | 6.6 |
| Cummins/Onan DSGAA | 100 | 4.60 | 8.27 | 1171 | 67.3 |
| Generac SD100 | 100 | 4.20 | 7.29 | 199280 | 12533.3 |
| Isuzu 4HK1 | 100 | 0.95 | 1.93 | — | — |
| Kohler 100EFOZ | 100 | 4.20 | 7.29 | — | — |
| Kohler 100REOZJC | 100 | 4.09 | 7.19 | — | — |
| Kohler 100REOZJE | 100 | 3.80 | 7.29 | — | — |
| MQ Power 1200 Amp Diesel Studio Generator | 100 | 9.25 | 16.91 | 568 | 16.2 |
| MTU 4R0113 DS100 | 100 | 1.37 | 2.62 | — | — |
| MTU 4R0120 DS100 | 100 | 1.37 | 2.62 | 230 | 44.2 |
| MTU MTU 4R0113 DS100 | 100 | 1.37 | 2.62 | — | — |
| SDMO J100UC | 100 | — | 6.10 | — | — |
| SDMO JS100U | 100 | — | 7.00 | — | — |
| SDMO JS100UC | 100 | — | 6.10 | — | — |
| Terex T120 | 100 | 0.90 | 1.59 | — | — |
| Winco DR100F4 | 100 | 4.67 | 7.71 | — | — |
| Hipower HJW 105 T6 | 101 | 3.91 | 6.92 | — | — |
| Hipower HRJW 115 T6 | 101 | 4.33 | 7.56 | 800 | 48.8 |
| Cummins/Onan 6BTA5.9 | 102 | 3.17 | 5.55 | — | — |
| Deutz BF4M 1013 E | 102 | 58.91 | 59.70 | — | — |
| Kohler 100REOZJF | 102 | 3.80 | 7.29 | 215 | 14.9 |
| Magnum MMG120 | 102 | 3.70 | 7.40 | 1295 | 92.5 |
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 28 models with manufacturer data, full-load consumption runs 0.63–59.70 gal/h (median 6.96); at 50% load the median is 3.80 gal/h.
At 50% load, documented tank sizes give 6.6–12533.3 hours (median 46.5 h) across 10 models.