In recent years, the application of silicone oil materials in the automotive industry has continued to break through, becoming a key technology to enhance vehicle performance and safety. With core advantages such as high and low-temperature resistance and strong lubricity, silicone oil is penetrating from traditional lubrication fields into high-end scenarios like new energy vehicles (NEVs) and precision components, driving industry technological iteration.

Application in Traditional Fuel Vehicles

In the field of traditional fuel vehicles, the popularization of silicone oil brake fluid has significantly improved the reliability of braking systems. Its water-repellent property effectively prevents corrosion of metal components, reducing long-term maintenance costs. For example, in extreme environments (-40°C to 288°C), silicone oil brake fluid still maintains stable performance to ensure braking safety. Meanwhile, the compatibility of silicone oil with rubber and plastic parts avoids material aging caused by traditional brake fluids, extending the service life of braking systems. Currently, many models from mainstream automakers such as Audi, BMW, and Mercedes-Benz have adopted silicone oil fan clutches, which achieve intelligent heat dissipation by transmitting torque through silicone oil, reducing energy consumption and noise.

Breakthrough Applications in New Energy Vehicles

In the NEV sector, silicone oil applications have shown more radical innovation. The liquid-cooled silicone oil technology developed by Jitai Co., Ltd. provides a new solution for battery thermal management in electric vehicles. Through immersion cooling with silicone oil, this technology not only extends battery cycle life by 33% but also theoretically increases range by approximately 33%. The modified silicone oil coolant from Runhe Materials has passed national standard tests, achieving safety breakthroughs of "no smoke, no fire, no explosion" in energy storage batteries and electric bicycles, with costs only one-tenth of traditional fluorinated liquids. Additionally, vinyl fluorosilicone oil applied in automotive seals prevents engine compartment oil leakage with its oil resistance and anti-aging properties, enhancing the stability of core NEV components.

Versatility in Auto Parts Manufacturing

The multifunctionality of silicone oil is further highlighted in auto parts manufacturing. DuPont's MOLYKOTE® silicone oil series is widely used in automotive fan clutches, HVAC systems, and interior components, providing long-lasting lubrication and noise reduction solutions. Silicone grease plays a role in insulating and waterproofing electronic components, spark plugs, and other parts, adapting to extreme temperatures from -40°C to 260°C. For instance, a leading automaker uses silicone grease to protect battery pack connection components in NEV models, significantly reducing circuit failure risks.

Future Trends: Policy-Driven Market Potential

As policies raise safety requirements for NEVs, the market potential of silicone oil technology continues to expand. The High-Quality Development Action Plan for New Energy Storage Manufacturing recently released by the MIIT and seven other departments explicitly encourages "full-immersion fireproof" technologies. Companies like Runhe Materials have taken the lead in responding with silicone oil liquid-cooling solutions, and it is expected that the scale of China's immersion liquid-cooling energy storage market will reach 6.5 billion yuan by 2025. In the future, innovative applications of silicone oil under the trends of automotive lightweighting and intelligence will further promote the industry's development toward efficiency, safety, and environmental protection.
This translation maintains the original report's structure and technical details while adapting to English journalistic style, ensuring professionalism and readability for international audiences.