Gearbox oil Ford Focus IV IB5/MMT6 — viscosity and OEM spec
Gearbox oil for Ford Focus IV IB5/MMT6 (2018–2024) — correct viscosity, OEM specification, fill volume and change interval.
Gearbox Specifications
| Parameter | Value |
|---|---|
| Make / Model | Ford Focus IV |
| Gearbox type | manual |
| Gearbox code | IB5/MMT6 |
| Production Years | 2018–2024 |
| Oil viscosity | 75W-90 |
| OEM specification | Motorcraft MTF LT-1 |
| 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 IB5/MMT6
Motorcraft MTF-LT1 / Castrol Syntrax / Liqui Moly Gear 300 LS
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 Ford Focus IV IB5/MMT6?
Viscosity 75W-90, specification Motorcraft MTF LT-1, volume 2.1 L. Suitable brands: Motorcraft MTF-LT1 / Castrol Syntrax / Liqui Moly Gear 300 LS.
When should the gearbox oil be changed on Ford Focus IV?
Every 100000 km.
Can I use a universal ATF instead of Motorcraft MTF LT-1?
No. The IB5/MMT6 requires strict compliance with Motorcraft MTF LT-1. A universal ATF lacks the correct friction characteristics and will cause premature wear.
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