Electic vehicle charging.

Synthetic transmission oil for electric vehicles  

The growing market for electric vehicles (EV) has significantly impacted the transmission lubricant industry. Automotive original equipment manufacturers (OEMs) are making massive investments in developing EV technology. There’s no doubt that EVs are here and growing fast:


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Lubricant challenges

EV requirements are diverse and often unique to traditional lubrication challenges. New fluids and development approaches are required to address future needs.

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EV drivetrain fluids need to meet a wide range of heat transfer applications. EV components are highly integrated, while the battery and electronics may have contradicting needs.
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New fluid requirements are starting to emerge:

  • Desirable thermal properties
  • Ultra-low viscosity
  • Direct cooling and lubrication balance
  • Material compatibility (i.e. copper corrosion)

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Lubricant formulators also must solve safety and electrical considerations:

  • Balance of electrical properties for direct cooling
  • Safety challenges posed by aqueous fluids 

Tomorrow’s solutions

ExxonMobil is uniquely positioned to collaborate on EV challenges through our broad, diverse fluid options and our enhanced understanding of chemical compatibility due to integration across business lines.

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We are exploring new and existing molecules to meet EV challenges. Our research includes:

  • Fluid property mapping
  • Mapping new and existing fluids to identify optimal fluids
  • Database analysis to identify novel candidates
  • Studies on novel candidates

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As we develop lubricants for EVs, our primary performance targets include:

  • Heat transfer properties
  • Thermal and oxidative stability
  • Electrical properties
  • Lubricating properties

Balanced thermal/electrical properties and lubrication for ideal EV fluid performance.




Let’s talk about how we can support your success.


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