What Is Brake Fluid Made from?

Answer

Brake fluid is made from petroleum, a mixture of polyglycol and glycol ethers with additives. It can be combined with used oil as long as it does not contain any solvents, brake cleaners or carburetor cleaners. It is recommended that glycol-based fluid be changed every one to two years.
1 Additional Answer
Brake fluid is actually made up of a mixture of polyglycol and glycol ethers that have additives. The brake fluid is used in the hydraulic brakes and the clutches. They are not petroleum-based and so do not damage the rubber seals.
Q&A Related to "What Is Brake Fluid Made from"
Most Brake fluid is made of Glycol-ether. (Dot 3 being the most common). But mineral spirits is used in rare dot 5. Brake fluid is not considered hazardous until it is contaminated
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It is recommended that you change the brake fluid about every 2 years. The first thing you need to do is flush the system by bleeding out all the existing brake fluid. Repeat this
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Learning how to change brake fluid can help extend the life of your brakes. Brake fluid can be compromised by moisture (which lowers its boiling point), air (which reduces stopping
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Brake fluid is a mixture of polyglycol and glycol ethers with additives. It is made
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