Brake fluid Genesis G80 III (2020–2025) — DOT4 specification
Brake fluid for Genesis G80 III (2020–2025) — required specification, boiling points, system volume, and approved brands.
Technical Specifications
| Parameter | Value |
|---|---|
| Make / Model | Genesis G80 III |
| Production Years | 2020–2025 |
| Fluid specification | DOT4 |
| Dry boiling point | 230°C |
| Wet boiling point | 155°C |
| System volume | 700 ml |
| Change interval | 40 000 km / 2 years |
Approved brands
Hyundai/Genesis Genuine, ATE SL.6, Motul DOT4
Why Brake Fluid Must Be Changed Regularly
Brake fluid is hygroscopic — it absorbs moisture from the air over time. As moisture content increases, the boiling point drops significantly. When the fluid boils under heavy braking, vapour bubbles form and the pedal goes to the floor (vapour lock). Genesis requires DOT4 with a dry boiling point of at least 230°C.
How to Check Brake Fluid Condition
- Test strips — dip a strip in the reservoir; colour indicates moisture content
- Electronic tester — measures boiling point directly (most accurate)
- Visual inspection — dark/brown fluid indicates it must be replaced (fresh fluid is amber/clear)
FAQ
What brake fluid does Genesis G80 III use?
DOT4 specification. Dry boiling point: 230°C. System volume: 700 ml. Approved brands: Hyundai/Genesis Genuine, ATE SL.6, Motul DOT4.
How often should I change brake fluid in Genesis G80 III?
Every 40 000 km or every 2 years — whichever comes first. This is a safety-critical service.
Can I mix different DOT grades?
You can mix DOT 3 and DOT 4 in an emergency, but never mix DOT 5 (silicone-based) with DOT 3/4 (glycol-based). Always use the correct specification: DOT4.
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