Description
DOT 3 Brake Fluid — What It Is & Key Specs
DOT 3 is a glycol‑ether–based brake fluid commonly used in cars, trucks, and motorcycles. It is designed to handle heat and pressure inside hydraulic brake systems.
Key Characteristics
1. Glycol-Based
Key Characteristics
1. Glycol-Based
Key Characteristics
1. Glycol-Based
DOT 3 is hygroscopic — it absorbs moisture over time.
Because of this, it should be replaced periodically (often every 1–2 years, depending on manufacturer guidance).
Common Uses
Ideal for:
Passenger vehicles
Light-duty trucks
Daily driving
Systems not requiring very high boiling points
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