Gearbox oil Opel Insignia A auto AF40 — viscosity and OEM spec
Gearbox oil for Opel Insignia A auto AF40 (2008–2017) — correct viscosity, OEM specification, fill volume and change interval.
Gearbox Specifications
| Parameter | Value |
|---|---|
| Make / Model | Opel Insignia A auto |
| Gearbox type | automatic |
| Gearbox code | AF40 |
| Production Years | 2008–2017 |
| Oil viscosity | ATF |
| OEM specification | Dexron VI |
| Fill volume | 7.0 L |
| Change interval | lifetime |
“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 AF40
GM Dexron VI / Castrol Transmax DEX/MERC ATF / Shell Premium ATF
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 Opel Insignia A auto AF40?
Viscosity ATF, specification Dexron VI, volume 7.0 L. Suitable brands: GM Dexron VI / Castrol Transmax DEX/MERC ATF / Shell Premium ATF.
When should the gearbox oil be changed on Opel Insignia A auto?
Every lifetime km.
Can I use a universal ATF instead of Dexron VI?
No. The AF40 requires strict compliance with Dexron VI. A universal ATF lacks the correct friction characteristics and will cause premature wear.
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