Manufacturer-documented fuel consumption for 11 30–35 kW Bi-Fuel (NG/LP) generator sets — median 3.28 gal/h at full load, 2.22 gal/h at half load.
Compare 30–35 kW Bi-Fuel (NG/LP) generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Cummins/Onan C30 N6 | 30 | 2.70 | 4.50 | — | — |
| Cummins/Onan RS 30 | 30 | 2.70 | 4.50 | — | — |
| Generac QT030 | 30 | 0.79 | 4.51 | — | — |
| Generac QT03015 | 30 | — | 0.90 | — | — |
| Generac RG030 | 30 | 0.87 | 1.24 | — | — |
| Generac RG03015ANAX | 30 | — | 2.10 | — | — |
| Kohler 30RCL | 30 | 20.92 | 35.19 | — | — |
| SDMO G45 | 31 | — | 3.28 | — | — |
| Generac RG032 | 32 | 0.55 | 0.90 | — | — |
| Generac RG03224ANAX | 32 | — | 2.10 | — | — |
| Generac XG03245 | 32 | 2.22 | 3.58 | — | — |
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 11 models with manufacturer data, full-load consumption runs 0.90–35.19 gal/h (median 3.28); at 50% load the median is 2.22 gal/h.