Can You Use DOT 3 in a DOT 4 Brake System

Is It Safe to Use DOT 3 Brake Fluid in a DOT 4 System? 🚫 No, it is not recommended to use DOT 3 in a DOT 4 brake system. While both fluids are glycol-based and compatible, DOT 4 has a higher boiling point and is designed to handle more heat. Using DOT 3 in…