[gmammakn]

The service interval is 160,000 miles or 16 years

 

[gmammakn]

Hi TTMacan, I'm a little confused. Directions said 3 and 5, yet your pics looks like you removed #2 plug? I thought 3 and 5 were for the PDK fluid?

3 and 5 are for the gear fluid.

1 and 4 are for the PDK clutch fluid. The diagram is at an angle. From the side it 4 is almost at the same level back as 1 if that makes sense.