Gas turbine generator unit

Lubricant selection for gas turbine generator unit in a gas and steam turbine power plant.

Mobil

Turbine reservoir and oil-lubricated generator bearings
DTE 700 / SHC 800

Separate electro-hydraulic control system, if fitted
Pyrotec HFD 46, where specified

Shell

Turbine reservoir and oil-lubricated generator bearings
Turbo S4 X / S4 GX

Separate electro-hydraulic control system, if fitted
OEM-approved fire-resistant fluid: review required

TotalEnergies

Turbine reservoir and oil-lubricated generator bearings
PRESLIA GT / PRESLIA EVO

Separate electro-hydraulic control system, if fitted
OEM-approved fire-resistant fluid: review required

Caltex

Turbine reservoir and oil-lubricated generator bearings
GST Advantage RO / EP

Separate electro-hydraulic control system, if fitted
OEM-approved fire-resistant fluid: review required

Selection notes

Select the OEM-approved viscosity and turbine-oil type for thermal duty and any shared gearing. EHC phosphate-ester fluid is a separate selection; do not mix with mineral or PAO turbine oil. Aeroderivative turbines may require aviation-type ester oils.

Product families for technical selection, not a direct interchange chart. Confirm the exact grade, current UAE product data sheet, OEM approval and lubricant compatibility before use.