SINOTRUK truck brake fluid is an essential oil liquid used in the braking systems of heavy truck spare parts. Here are some introductions about it:
Function: Transmits braking force. When the driver depresses the brake pedal, the brake liquid is pressurized and transmitted it to the wheel brake drum through the brake master cylinder, thereby achieving entire braking of SINOTRUX. At the same time, it can effectively lubricate the moving parts of the braking system, extend the service life of the brake booster and the rubber cups, and is non-corrosive to the metal and non-metal materials of the braking system.
Type: Common types include DOT 3, DOT 4, etc. Among them, DOT 4 has better performance and is suitable for most heavy truck, including SINOTRUCK, SHACMAN, FOTON, DONGFENG and most other brand models.
Components of brake fluid:
Common components: ethylene glycol ethyl ether, propylene glycol methyl ether, etc.
Function: As the basic solvent of brake oil fluid, it provides fluidity and ensures the transmission of braking force.
Characteristics: Strong hygroscopicity (for DOT3/DOT4 types), requires sealed storage to prevent water absorption and deterioration.
Corrosion inhibitors: Such as borate esters and amine compounds, prevent the rusting or corrosion of metal components in the braking system (such as cast iron and aluminum alloys).
Anti-foaming agents: Suppress the formation of bubbles in the braking fluid under high pressure (bubbles can cause braking failure).
Lubricants: Lubricate the rubber components in the braking system (such as rubber cups and sealing rings), extending their service life.
Antioxidants: Delay the oxidation and deterioration of the braking fluid at high temperatures, maintaining stability.

How about the replacement cycle of brake oil fluid?
Generally, it is recommended to replace the fluid every 2 years or 40,000 kilometers. Brake fluid is hygroscopic and will absorb moisture from the air over time, resulting in a lower boiling point and increased corrosiveness, which can affect the braking performance.
If the heavy truck is used in harsh conditions, such as in humid areas, or if the moisture content of the fluid reaches 3%, it is also necessary to replace it immediately. Anyway, the driver should to brake fluid tester every year.
The usage precautions of the HOWO drum truck brake fuel:
Do not mix different types and brands of brake fluids to avoid affecting braking performance. Regularly check the level and quality of the fluid. If you find the level is too low or the oil is cloudy or has a darker color, add or replace it promptly. When adding, ensure the added fluid meets the truck’s usage requirements, and prevent impurities from mixing during the addition process.
Brake fuel storage location: It is usually placed next to the brake master cylinder in the engine system, below the cab parts on the driver’s side. The brake fluid is stored in a plastic container with transparent scale lines, known as the oil tank, which makes it convenient for the owner to check the fluid level.

How about the brake fluid price?
The price varies depending on the brand, model, region and purchasing channel. Generally speaking, the prices of Chinese brands are relatively cheaper (for example: Great Wall, Kunlun, Unify, etc.) around 20-50 per bottle.
International brands (such as BOSHI, Shell, Castrol) etc. have slightly higher prices, around 50-100 per bottle. With the continuous development of China’s technology and industrial technology, the sales volume of brake liquid produced in China has reached an advanced level worldwide. Please feel free to purchase.
ZK is a company that specializes in manufacturing brake system components for well known brands such as Sinotruk company, HOWO truck, and SHACMAN truck, ect. With rich industry experience, exquisite production techniques, and strict quality control systems, it is highly favored by domestic and international heavy truck suppliers. Our products are exported to regions such as Southeast Asia, South America, and Africa. At the same time, we can provide free replacement and installation services. If you have any questions, please feel free to contact us promptly.