Can engine oil be used as a substitute for brake fluid?

1 Answers
LaLevi
07/29/25 9:25pm
No, engine oil serves as a lubricant and does not have pressure, whereas brake fluid is a pressure fluid used in hydraulic braking systems. Here is the relevant information: Brake fluid: Brake fluid, also known as brake liquid or hydraulic brake fluid, is a type of fluid made from refined diesel distillate with thickeners and antioxidants. It comes in three types: mineral oil brake fluid, alcohol-based brake fluid, and synthetic brake fluid. Hazards of substitution: If engine oil is used as a substitute for brake fluid, it will result in the inability to press the brake pedal, and the engine oil will corrode the braking system, causing damage to the vehicle's braking system and severely compromising personal safety.
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