I'm using a decent quality semi-synthetic 10/w40. I intend to change oil & filter every 3000 milesTad said:Because of the extreme temps in the turbo, I'd be tempted to run some kind of Synthetic. 10w40 should be a good weight though. Does your owners manual say what is recommended? Also be sure to let the turbo cool down if you've been driving hard and park it.
-Tad