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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.

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.

New fluid requirements are starting to emerge:

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

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.

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

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

Heat transfer properties
Thermal and oxidative stability
Electrical properties
Lubricating properties

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

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