Power Generation Lubricants

From standby generators and combined heat and power installations to turbines and renewable energy assets, reliable generation depends on well-maintained machinery. Rock Oil supplies engine oils, turbine and compressor lubricants, hydraulic fluids, gear oils, coolants and maintenance products to support both the generating equipment and its auxiliary systems.
Turbine lubrication for continuous operation
Sustained loads, heat and long operating cycles demand oils that resist oxidation and deposits while protecting bearings and circulation systems. The INDUS-TURBINE range offers different technologies for established plant, modern generating equipment and wind turbine gearboxes.
INDUS-TURBINE and INDUS-TURBINE ULTRA
INDUS-TURBINE uses Group I base oils for general-purpose lubrication of suitable steam turbines, oil-lubricated bearings and industrial systems. It provides oxidation stability, rust and corrosion protection, air release and water separation.
INDUS-TURBINE ULTRA uses Group II base oils for modern power-generation and industrial turbine systems. Its formulation supports resistance to sludge and varnish, low foaming, rapid air release and effective water separation in geared and non-geared turbine applications.
Both ranges are available in ISO viscosity grades 32, 46, 68, 100 and 220. Match the grade and performance requirements to the particular turbine; the relevant TDS provides grade-specific information.
INDUS-TURBINE WIND S 320
This fully synthetic PAO wind turbine gearbox fluid is developed for demanding onshore and offshore drivetrains. Its ISO VG 320 formulation combines oxidation resistance and low-temperature fluidity with protection against bearing wear and gear micropitting, supporting equipment exposed to changing loads and restricted maintenance access.
Compressor and engine lubrication
COMPRESSOR-GUARD: a choice of technologies
Compressors supporting generation sites need lubrication matched to the compressor design, load and working temperature. The range progresses from mineral oils to synthetic formulations for more demanding operating conditions.
- COMPRESSOR-GUARD 2000: Group I mineral oils for suitable rotary screw, vane and reciprocating compressors.
- COMPRESSOR-GUARD 5000: Group II oils offering improved oxidation resistance for continuous operation.
- COMPRESSOR-GUARD 8000: synthetic PAO oils for high-temperature and high-load applications.
- COMPRESSOR-GUARD AIR 12000: synthetic ester (POE) oils developed for resistance to varnish and deposit formation.
Choose the viscosity and service plan around the equipment specification and operating conditions, supported by lubricant monitoring.
Gas engines, CHP and diesel generators
GEN-GUARD is Rock Oil’s stationary gas-engine lubricant range. For natural-gas and other gas-fuelled generating installations, selection centres on the engine requirements, fuel composition, ash level and operating conditions.
Our technical team can advise on the product choice for the application, including combined heat and power installations and engines using biogas or other variable-quality fuels.
For diesel generators, TRUCK-GUARD provides mixed-fleet and low-ash engine-oil options, including suitable 10W-30, 10W-40 and 15W-40 formulations. Match the oil to the generator’s specification, emissions equipment and continuous-duty or standby service pattern.
Supporting the complete installation
ULTRA-HYD: control and auxiliary hydraulics
Hydraulic equipment across generation sites can require different fluid technologies, from maintenance plant to control and auxiliary systems.
- ULTRA-HYD HLP: mineral hydraulic lubrication for general applications.
- ULTRA-HYD HVI and HVI LL: high viscosity index options for changing temperatures, with Group II-based long-life performance in HVI LL.
- ULTRA-HYD LL, ZF and ZF LL: long-life and zinc-free options for systems with defined fluid requirements.
- ULTRA-HYD FLYBRID HVI: fully synthetic fluid for demanding hydraulic service.
Where fire risk or environmental requirements guide selection, the portfolio also includes fire-resistant fluids and biodegradable options. Our technical team can advise on compatibility and changeovers.
INDUS-GEAR: enclosed gear drives
Reduction gearboxes, conveyors and other auxiliary drive systems need oils selected around gear design, load, speed and temperature.
- INDUS-GEAR M CLP: fortified mineral industrial gear oils.
- INDUS-GEAR S PAO CLP: heavy-duty synthetic PAO industrial gear fluids.
- INDUS-GEAR S PAG: synthetic PAG fluids for equipment requiring this chemistry.
A broad selection of viscosity grades allows products to be matched to different gear systems. Ask our technical team about the correct technology and any planned change from the existing oil.
KOOL-GUARD: cooling-system protection
Generator engines and auxiliary cooling circuits depend on the correct coolant for heat transfer and corrosion protection. KOOL-GUARD offers concentrated and ready-to-use products across IAT, OAT and hybrid technologies.
The range includes MEG, XL, VCS, ELC, H-OAT and PSi-OAT options. Match the coolant chemistry, dilution and performance specification to the engine or system requirements.
Our technical team can help with coolant selection and compatibility when planning a system change.
Specialist fluids and maintenance products
COMPRESSOR-GUARD GAS PAG provides an option for gas compressors where gas dilution affects conventional lubricants. VACUUM-GUARD supports suitable vacuum pump systems.
For site maintenance, products include BRAKE KLEEN and SOC for cleaning, ROCKEZE for penetrating and moisture-displacing protection, WHITE SPRAY GREASE for suitable lubrication points and COPPER ANTI-SEIZE for appropriate assembly applications.
For bearings, motors, fans and pumps, we can advise on grease selection around speed, load, temperature and the existing lubrication system.
Product information and maintenance support
Browse our product catalogue filtered for power generation products for specifications and available Technical Data Sheets (TDS). The brochures alongside this page give an overview of the turbine, compressor, gear, hydraulic, coolant and aerosol ranges.
For up-to-date information and application advice, speak to our dedicated technical team. Share the equipment make and model, required specifications, fuel or processed gas, operating conditions and current lubricant.
Rock Oil’s oil, grease and fuel analysis kits can support condition monitoring and planned maintenance. Trend results alongside the equipment manufacturer’s guidance to inform servicing decisions for critical machinery.

Plan lubrication around your generating equipment
Whether you operate standby generators, a CHP installation or continuous-duty plant, Rock Oil can help you choose lubricants and support products around the complete system.
Browse our product catalogue filtered for power generation products for specifications and available TDS, or speak to our dedicated technical team for current information and advice.
- Match products to your plant
Discuss engine, turbine, compressor and gear lubrication against your equipment requirements. - Support the auxiliary systems
Get advice on hydraulic fluids, coolants, greases and maintenance products. - Make informed maintenance decisions
Talk through operating patterns, lubricant monitoring and planned product changeovers.
Technical expertise for dependable generation
Rock Oil brings together engine, turbine, compressor and industrial lubrication expertise to support mobile generators, fixed installations and renewable energy equipment. Our products are developed and manufactured in Britain, with a broad portfolio covering primary machinery and the systems around it.
Our dedicated technical team can help translate equipment specifications, fuel quality and operating conditions into informed product choices. From selecting an individual lubricant to reviewing the requirements across a site, contact Rock Oil for current information and practical application advice.
