What's the oil?

[steve h]

Does anyone know what the original engine oil fitted to the Astra VXR is?
Vauxhall dealers say Fully Sinthetic 05/30
Castrol say Fully Sinthetic 0/30
I dont want to upset the turbo, so what is the correct oil?
Steve

[Sparky]

I think if you check the manual you will find the correct oil. I am sure its 05/30. Just make sure the oil you use conforms to GM specification or higher.