If its a automatic it came with a 13g.
But that doesnt mean it wasnt changed out for a 14b and some point.
The turbo should say TDO4 or TDO5 on it.
TDO4 is a 13g.
If it is a automatic you will need to change the coolant and oil lines along with the exhaust manifold to use a 14b or 16g.