Gearbox oil BMW 3 Series G20 ZF8HP — viscosity and OEM spec
Gearbox oil for BMW 3 Series G20 ZF8HP (2018–2024) — correct viscosity, OEM specification, fill volume and change interval.
Gearbox Specifications
| Parameter | Value |
|---|---|
| Make / Model | BMW 3 Series G20 |
| Gearbox type | automatic |
| Gearbox code | ZF8HP |
| Production Years | 2018–2024 |
| Oil viscosity | ATF |
| OEM specification | ZF Lifeguard 8 |
| Fill volume | 8.5 L |
| Change interval | 80000 |
“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 ZF8HP
ZF LifeguardFluid 8 / Castrol TranSynd / Liqui Moly ATF 8HP
Automatic Gearbox — Key Points
Automatic gearbox: A standard drain-and-fill replaces ~60% of the fluid. Full flush with a flush machine is recommended every 80,000–120,000 km.
FAQ
What oil goes in BMW 3 Series G20 ZF8HP?
Viscosity ATF, specification ZF Lifeguard 8, volume 8.5 L. Suitable brands: ZF LifeguardFluid 8 / Castrol TranSynd / Liqui Moly ATF 8HP.
When should the gearbox oil be changed on BMW 3 Series G20?
Every 80000 km.
Can I use a universal ATF instead of ZF Lifeguard 8?
No. The ZF8HP requires strict compliance with ZF Lifeguard 8. A universal ATF lacks the correct friction characteristics and will cause premature wear.
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