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Castrol ON for electric cars

Power your EVs performance with Castrol ON EV Fluids, designed for cooler batteries and extended range.

Switch ON an electric future

Castrol ON is Castrol's high-performance range of products engineered for electric vehicles. Our EV Fluids play a major role in helping EVs:
 

Go further1* EV Transmission Fluids help reduce energy losses in the drivetrain system and improve transmission efficiency.
 

Charge faster2* EV Thermal Fluids can help reduce the maximum temperatures battery cells reach during ultrafast charging.
 

Last longer3* EV Transmission Fluids help protect gears, extending drivetrain system life.

Trusted by manufacturers

Castrol partners with automotive masterminds to help redefine what electric vehicles can achieve. Our advanced EV Fluids help to bring a new era for electric vehicles.

 

3 out of 4 major vehicle manufacturers choose Castrol EV Fluids4

Castrol ON: Switch on an electric future

The Castrol ON EV range

The Castrol ON range of EV Fluids plays a major role in helping EVs go further1*, charge faster2* and last longer3*.

The unique challenges of electric vehicles

Castrol ON helps protect electric cars in three critical areas:

The demands on EV transmissions are more severe than those of conventional transmissions, as an e-motor in an electric vehicle can deliver maximum torque at low speeds.

 

In addition, hardware solutions are evolving from separate electric motors and transmissions to a combined system, creating new challenges.

 

Castrol’s EV Fluids have the appropriate dielectric properties and component compatibility to ensure durability over their lifetime.

 

Castrol ON EV Transmission Fluids helps reduce energy losses in the drivetrain system and improve EV transmission efficiency.

The thermal management of EV’s batteries is critical to their safe operation and longevity.

 

Batteries can suffer from excessive heat for a number of reasons. All batteries heat up when charged and discharged due to internal resistance – something which increases over time due to battery degradation as the number of charge cycles increases. High current and ultrafast charging also pushes temperatures even higher.

 

Castrol ON EV Thermal Fluids feature advanced properties developed to improve battery thermal management and help extend battery life.

Electric vehicles need specialised greases that are both compatible with electrical components and able to deal with the extra demands placed on mechanical components.

 

These components can experience higher loads, relative speeds, and greater power density compared to traditional internal combustion engines. High instantaneous torque from the e-motor puts significant stress on the bearings and gear components.

 

Castrol ON EV Greases are designed to overcome the unique challenges faced by electric vehicles – delivering optimum efficiency and extending the life of EVs components.

Frequently asked questions

No, your electric car doesn’t need engine oil. Unlike traditional internal combustion engines and hybrid vehicles, EV motors are powered by a high-performance battery with fewer moving parts, so engine oil isn’t required for lubrication.

 

But, electric cars still need some specific lubricants to combat their unique challenges:

  • EV Transmission Fluids: Essential for smooth power delivery.
  • EV Thermal Fluids: Helps regulate battery temperature, ensuring efficiency and longevity.
  • EV Greases: Keeps moving parts like bearings well-lubricated for reliability.

With a reduced amount of fluids and greases, electric cars offer a simpler and cleaner driving experience.

While electric cars require less fluid maintenance than traditional vehicles, it's still essential to check and change certain fluids. Coolant for the battery and thermal management system should be inspected regularly and typically replaced every 50,000 to 100,000 miles, depending on the manufacturer. Brake fluid should be changed about every 20,000 to 30,000 miles to ensure optimal performance. Always refer to your owner's manual for precise intervals and keep your EV running at its best.

Castrol electric vehicle motorsport partnerships

Find out more about who we collaborate with, to create leading EV Fluids that drive performance.

Looking for something else?

*Castrol ON EV Fluids benefits are demonstrated in bespoke testing and development. Go further1, charge faster2 and last longer31vs mass market EV factory fill fluid. 2vs indirect cooled battery system. 3vs standard EV transmission fluid.
4Based on GlobalData report for top 20 selling OEMs (total new passenger car and light commercial vehicle sales) in 2023. Used by these OEMs as a part of EV factory fill.