Manufacturer-documented fuel consumption for 5 30–35 kW Natural Gas generator sets — median 4.50 gal/h at full load, 10.24 gal/h at half load.
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Kohler 30 RYG | 30 | 2.54 | 3.82 | — | — |
| Kohler 30REYG | 30 | 17.94 | 29.93 | — | — |
| Kohler 30REZG | 30 | 21.66 | 34.87 | — | — |
| MTU 4R0063 GS30 | 30 | 1.37 | 2.62 | — | — |
| Wildcat Roughneck NG 30KW | 30 | — | 4.50 | — | — |
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 5 models with manufacturer data, full-load consumption runs 2.62–34.87 gal/h (median 4.50); at 50% load the median is 10.24 gal/h.