Gearbox oil Hyundai Tucson NX4 M6GF4 — viscosity and OEM spec
Gearbox oil for Hyundai Tucson NX4 M6GF4 (2021–2025) — correct viscosity, OEM specification, fill volume and change interval.
Gearbox Specifications
| Parameter | Value |
|---|---|
| Make / Model | Hyundai Tucson NX4 |
| Gearbox type | manual |
| Gearbox code | M6GF4 |
| Production Years | 2021–2025 |
| Oil viscosity | 75W-85 |
| OEM specification | MTF-75W85 |
| Fill volume | 2.1 L |
| Change interval | 100000 |
“Lifetime” fill in DSG and CVT gearboxes does not mean never change the oil — manufacturers recommend changing every 60,000 km to preserve gearbox life.
Approved Oils for M6GF4
Hyundai MTF / Castrol Syntrax Ultra / Liqui Moly 75W-85
Manual Gearbox — Key Points
Manual gearbox: Drain on a warm gearbox for best flow. Fill to the level plug hole and refit immediately.
FAQ
What oil goes in Hyundai Tucson NX4 M6GF4?
Viscosity 75W-85, specification MTF-75W85, volume 2.1 L. Suitable brands: Hyundai MTF / Castrol Syntrax Ultra / Liqui Moly 75W-85.
When should the gearbox oil be changed on Hyundai Tucson NX4?
Every 100000 km.
Can I use a universal ATF instead of MTF-75W85?
No. The M6GF4 requires strict compliance with MTF-75W85. A universal ATF lacks the correct friction characteristics and will cause premature wear.
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