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Castrol announces launch of Castrol ON, range of advanced e-Fluids for improved electric vehicle performance

Castrol announces launch of Castrol ON

Castrol ON: Range of advanced e-fluids for mobility on land, sea and in space

  • Castrol ON e-Fluids have a critical role to play in the era of e-mobility
  • Castrol ON e-Transmission Fluids, e-Coolants and e-Greases aim to bring the industry closer to achieving the key tipping points for mainstream electric vehicle (EV) adoption by helping them go further¹, charge faster² and last longer³ *
  • Advanced e-Fluids manage temperatures within the battery which enables ultra- fast charging, help EVs to go further on a single charge, improve efficiency and extend the life of the drivetrain system
  • More than half of the world’s major vehicle manufacturers already use Castrol e-Fluids as part of their factory fill for EVs4

Castrol has today announced the launch of Castrol ON, the new brand for its range of advanced fluids for EVs. The range includes e-Transmission Fluids, e-Coolants and e-Greases. Advanced e-Transmission Fluids help extend the life of the drivetrain system and enable EVs to go further on a single charge. e-Coolants help keep batteries cooler, even in extreme conditions, and enable them to tolerate ultra-fast charging (>150kw), while e-Greases enable EVs to perform more efficiently by minimising temperature spikes, and enhancing durability of components whilst lowering weight.


Castrol ON e-Fluids therefore help to bring the automotive industry closer to achieving the three key tipping points for mainstream EV adoption, as identified by Castrol’s Accelerating the EVolution study. These tipping points are: a charge time of 31 minutes, a range of 469 kilometres and a price point of $36,000. 


The move towards e-mobility

With governments announcing the acceleration of the ban on sales of new internal combustion engine (ICE) vehicles and predictions that 80% of passenger cars could be EVs by 2050, the race is on to meet the key tipping points and ensure EVs meet consumer expectations. The Castrol ON product range will help improve the performance of electric vehicles and “switch on an electric future”. 


As well as an advanced range of e-Fluids for ‘first fill’ applications, Castrol has developed an e-Fluid for workshops – Castrol ON e-Transmission Fluid E1 – which will be available in BYD workshops across China in 2021.


Castrol ON: leading the charge

Castrol’s e-Fluids range has been developed in close collaboration with industry partners including the Jaguar Racing Formula E Team. Castrol ON’s motorsport collaborations mean that e-Fluid technologies can be pushed and tested to the limit on the track before they reach the road.


Mandhir Singh, senior vice president at Castrol said:

“Pioneering technology and product innovation have been at the heart of Castrol for over a century. We constantly look to create better, more relevant products to meet the dynamic and ever-changing needs of our customers.


“Our Accelerating the EVolution report helped us to identify the need for EVs to go further, charge faster and provide better value for money. The Castrol ON range provides vehicles with the e-Fluids they need to overcome these challenges. By turning Castrol’s vast technology expertise to this new area we are helping to shape the future of transport.”


The new Castrol ON e-Fluid range


Castrol ON battery e-Coolant improves thermal management, keeping batteries cooler and at more stable temperatures, even in extreme conditions. This enables ultra-fast charging, and helps to extend the life of the battery.


e-Transmission Fluids

Castrol ON e-Transmission Fluids deliver enhanced protection of the drivetrain and improve efficiency, helping EVs go further on a single charge and working to extend the life of the drivetrain system.



Castrol ON e-Greases play a vital role in maintaining optimum efficiency and extending the life of components.


To find out more about Castrol ON visit:


¹ vs mass market EV factory fill fluid ² vs indirect cooled battery system ³ vs standard EV-transmission fluid

*Castrol e-Fluids benefits demonstrated in bespoke testing and development

⁴ Based on LMCA data for top 20 selling OEMs (new car sales) in 2019. Used as part of OEM factory fill.