Manufacturer-documented fuel consumption for 5 550–555 kW Diesel generator sets — median 35.93 gal/h at full load, 17.54 gal/h at half load.
Compare 550–555 kW Diesel generator specs side-by-side →
| Model | kW | gal/h @ 50% | gal/h @ 100% | Tank (L) | Runtime @ 50% (h) |
|---|---|---|---|---|---|
| Caterpillar D550 GC | 550 | 24.22 | 42.56 | 4292 | 46.8 |
| FG Wilson P688E1 | 550 | — | 34.40 | 863 | — |
| Kohler 550REOZVB | 550 | 17.54 | 35.93 | — | — |
| MQ Power 550kW Containerized Diesel Generator Set | 550 | — | 37.70 | 900 | — |
| MTU 12V1600 DS550 | 550 | 1.37 | 2.62 | — | — |
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 2.62–42.56 gal/h (median 35.93); at 50% load the median is 17.54 gal/h.
At 50% load, documented tank sizes give 46.8–46.8 hours (median 46.8 h) across 1 models.