Hi all. Im looking for advice on what oil to use in my o6. Currently using Nulon 10w40 synthetic. I am thinking of changing to Castrol Edge 5w30. This is suposed to be for turbo fours ect. I change oil every 5k and filter every 10k. Does anyone use this oil and will it be ok to run in the pig, or should i stick to what im using.

cobia.