Electric vehicles have established a solid position in modern mobility. They are driven by electric engines that transmit their power via single-speed or, in some cases, multi-speed reduction gearboxes to the drive shafts and ultimately to the wheels.

For the majority of all applications in cars, etc., the use of multi-stage gearboxes can be avoided due to the characteristics of electric engines, which are able to deliver their power much more constantly and independent of engine speeds than combustion engines. One/two-stage reduction gearboxes are therefore often sufficient for matching the optimum engine speeds / wheel speeds.

In combination with electric motors, these reduction gearboxes have special requirements that differ greatly from the requirements for conventional gearboxes with combustion engines:

  • Very high incoming torque even at low engine speeds / driving speeds
  • Direct and sudden impact of the maximum torque
  • Torque is constantly available over a wide speed range
  • Punctual load peaks for transmission components: Gear wheels, shafts, bearings, etc.
  • Temperature management is subject to different influences than combustion engine systems
  • Material compatibility, efficiency and dielectric capabilities require special formulations
  • Special focus on the noise comfort of the transmission, as the engine is also quieter

Application in wet engine systems:

In addition to the conventional dry engine system, there is a second type of EV drive system: the wet engine system. Here, in addition to just lubricating the gearbox (dry engine system), the transmission oil is also passed through the housing of the electric engine to provide heat exchange. In this secondary application, the transmission oil requires even more advanced dielectric properties and material compatibility. The gear oil is exposed to strong electrical fields, which influence the properties of the oil. It comes into direct contact with insulating materials for which the oil must be compatible. In addition, micro-cracks develop over time in the engine system, through which the oil can reach current-conducting components. To prevent short circuits and other consequential damage, dielectric capabilities are required in this case.

We are therefore pleased to introduce to you today our three new RAVENOL EV-Synto transmission oils. Designed for electric vehicles with dry and wet engine systems, we present the following new high-performance transmission oils



RAVENOL
EV-Synto ATF E-Transmission Fluid

Developed for:
Reduction gearboxes in dry and wet engine systems from: Hyundai, Kia, Nissan, Lexus, Toyota, Mazda, Chevrolet, Ford, Opel/Vauxhall, SsangYong, Dacia, Tata, MG, Mahindra, Lixiang, Hycan, XPeng, Weltmeister
(Manufacturer's instructions must be followed)

Art.Nr.: 1215100

You can find details about the product here.

RAVENOL
EV-Synto Extra Fluid 70W E-TF

Developed for:
Reduction gearboxes in dry and wet engine systems from: Honda, BMW (i-Line), Mini, Mitsubishi, Fiat, Hyundai, Dong Feng, Geely, Chery, Kia, Tesla, Volvo, Nio, Lotus, Rimac, Rivian, Polestar
(Manufacturer's instructions must be followed)

Art.Nr.: 1215101

You can find details about the product here.

RAVENOL
EV-Synto Super Fluid 75W E-TF

Developed for:
Reduction gearboxes in dry and wet engine systems from: MB (EQ-Line), BMW (i-Line), VW (ID-Line), Porsche, Seat, Cupra, Audi, Skoda, Rolls-Royce, Ford, BYD, Renault, Smart, Tata, Jaguar, Citroën
(Manufacturer's instructions must be followed)

Art.Nr.: 1215102

You can find details about the product here.