What are the benefits of silicone brake fluid for cars?
2 Answers
Advantages of silicone brake fluid: 1. Long-term maintenance cost savings: Since silicone oil does not absorb water, it prevents water accumulation or the dissolution of oxidants that could corrode metal components. The non-conductive nature of silicone oil also avoids electrolytic corrosion. 2. Safe operation of the braking system: It can operate safely even in extreme weather conditions, whether at high temperatures of 288°C (550°F) or freezing temperatures of -40°C (-40°F). 3. Extended brake system lifespan: In addition to protecting the components of the hydraulic brake system from corrosion, silicone oil also provides lubrication, preventing wear on metal-rubber and metal-plastic components. 4. Safe handling: Silicone brake fluid is essentially non-toxic and does not require special precautions. Long-term storage does not degrade its physical properties due to water absorption. 5. Excellent compatibility: Mixing conventional polyol-based brake fluid with silicone brake fluid does not affect its performance. 6. No staining or damage to delicate car surfaces: Unlike polyol-based brake fluids, silicone oil does not harm car surfaces. Any spills or leaks during driving can be easily wiped clean. 7. High design flexibility: Silicone brake fluid is highly compatible with all alloys, rubber, and plastic materials, offering significant flexibility in brake system design.
I'm the type who enjoys maintaining my own car, and silicone brake fluid has quite a few benefits. Its high boiling point is a major advantage—even during high-speed driving or aggressive maneuvers when brake temperatures rise, it resists boiling, ensuring stable and reliable braking performance. Its hydrophobic nature is also crucial. Conventional brake fluids are prone to moisture absorption, which over time can lead to corrosion or brake failure due to water ingress. Silicone fluid, being completely waterproof, minimizes component wear and extends lifespan, naturally saving money in the long run. Compatibility-wise, it’s gentle on rubber and metal, reducing leaks. Having switched multiple times, I’ve found it far less troublesome than DOT 3/4. Though the initial cost is higher, its replacement cycle exceeds three years, making it cost-effective overall—especially for car enthusiasts like me, it’s the top choice.
