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85–90 kW Diesel Generator Fuel Consumption

Manufacturer-documented fuel consumption for 12 85–90 kW Diesel generator sets — median 6.00 gal/h at full load, 3.09 gal/h at half load.

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Consumption by model

12
ModelkWgal/h @ 50%gal/h @ 100% Tank (L)Runtime @ 50% (h)
Cummins/Onan 76 DGDA856.18200
Generac MDG100DF4853.186.0064253.4
Kohler 80REOZJ4853.095.8472762.1
Kohler 90REOZT4851.325.84727145.4
John Deere MMG100D863.096.2162553.4
Magnum MMG100863.096.2155647.6
FG Wilson P110883.095.7925021.4
MQ Power DCA100SSV883.436.0224018.5
Magnum MMG100D883.094.7862553.4
Power House PHD7A T8858.65
SDMO J 110 K886.21190
SDMO R110K883.04

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.

Common questions

How much fuel does a 85–90 kW Diesel generator use?

Across 11 models with manufacturer data, full-load consumption runs 3.04–6.21 gal/h (median 6.00); at 50% load the median is 3.09 gal/h.

How long will a 85–90 kW Diesel generator run on a full tank?

At 50% load, documented tank sizes give 18.5–145.4 hours (median 53.4 h) across 8 models.