Castrol rolls out transmission fluids for wet e-motors
Castrol has launched two new high-performance fully synthetic fluids designed for EVs that feature transmissions with wet e-motors.
Castrol ON EV Transmission Fluid W2 and W5 are demonstrated in bespoke testing and development to go further, charge faster and last longer.
The low-viscosity formulations of W2 and W5 have been specifically developed to deliver low electrical conductivity and enhanced system protection, helping the e-motor run at cooler temperatures and at optimal efficiency.
Both products have been designed and extensively tested to handle the high torque outputs that EV motors can generate even from low speeds.
Castrol said W2 has been developed for MG Motor and is compatible with the MG HS Plug-in Hybrid and MG ZS EV.
W5 has been developed for BYD and can be used for the wet e-motors found in the Seal saloon, as well as the upcoming Seal U DM-I Plug-in Hybrid SUV. The W5 formulation is also compatible with BYD models that feature a dry e-motor, including the Atto 3 and Dolphin.
Paul Beasley, expert technologist for driveline and EV aftermarket product development at Castrol, said: “The ability to be compatible with the wide array of materials and electrical components present in the motor, which contrasts with conventional transmission fluids that may provoke corrosion and damage, is critical.”
The launch of the two new wet EV transmission fluids follows the introduction of Castrol ON EV Transmission Fluids D1 and D2 in 2022, the company’s first dedicated products for EVs in aftersales.
Available in five-litre packs, Castrol ON Wet Transmission EV Fluid W2 and W5 are available to workshops from this month.