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A turbine is a rotating device (or rotating machine) that uses a fluid or gas to set a receiver in motion. Turbines make it possible to transform mechanical energy, either into electrical energy by driving an alternator as a receiver, or into another mechanical energy by driving a dynamic compressor as a receiver.

The vast majority of turbines (90%) are used to rotate alternators that produce electrical energy. Turbines which drive dynamic compressors are found especially in petrochemicals. There are 3 main types of turbines: the hydraulic turbine using water, steam turbine, and gas turbine. There are also lower power and smaller gas turbines derived from airplane turbines (aero-derivative gas turbines).

During the combustion cycle part of the energy produced by a turbine is lost in the form of heat. This heat energy can be recovered locally to produce steam intended, for example, to heat a building (cogeneration) or to drive another turbine (combined cycle). 

In order to ensure steam and gas turbines are at their optimal performance turbine oils have the following roles:

  • Reduce friction on moving parts
  • Protect against corrosion (in the presence of humidity)
  • Resist oxidation (in case of high temperatures, to be reinforced for gas turbines)
  • Contribute to cleanliness, by removing impurities such as air and water (especially for steam turbines)
  • Prevent the formation of varnish (hard and colored film which prevents thermal transfer) on the bearings 

Our turbine oils

For over 40 years, TotalEnergies Lubricants has been designing and developing innovative and high performance products. With the benefit of our extensive experience with original equipment manufacturers, TotalEnergies Lubricants offers you a complete range of lubricants and services for all turbine types: hydro, steam, gas, combined-cycle, or aeroderivative gas turbines.

TotalEnergies Lubricants closely monitors technological developments and new turbine operating profiles. We have developed a range of advanced, cutting-edge oils to cover all your needs:

  • Oil drain interval extension with PRESLIA GT
  • Protection against varnish and degradation by-products with PRESLIA EVO
  • Respect for the environment and aquatic systems with BIOPRESLIA HT

By choosing TotalEnergies Lubricants, you are assured of manufacturer-approved products that have a proven track record in the field.


Our formulations are optimally balanced to minimize deposits, protect your turbine under the most demanding conditions and keep your operations trouble-free. The long operating life of our turbine oils will help you maximize uptime and reduce your overall operating costs.

Preslia -  Steam and Gas Turbines

Preslia GT - Steam and Gas Turbines where higher EP-properties are required

Preslia EVO - Next Generation, low-varnish, Gas and Steam Turbine oil

Preslia SE JET - For use in Aero Derivative Gas Turbines

Preslia SE HTS - For use in Aero Derivative Gas Turbines requiring MIL-PRF-23699 HTS specification

Biopreslia -  Biodegradable turbine oil for Hydroturbines and other turbine applications requiring an environmentally friendly product

Other applications

Our services

TotalEnergies Lubricants offers a wide range of services for industry professionals. From in use oil analysis to our TIG6 maintenance software (CMMS), our range of services is specifically designed to help you approach the management of your operations with confidence, allowing you to focus on what matters most: your production.