Originally Posted By: CT8
What would the advantage be? looking at the uoas the dilution across the board is noticeable and running syn for 5,000 miles doesn't work and would 10,000 mile oil change intervals with the dilution be good ?
I would go with synthetics since, honestly, they are not that more expansive.
1. They will protect engine better.
2. Additive package is better, more stout.
3. If you run euro oils like Castrol 0W40 or maybe M1 )W40 (however, M1 is bit thicker then Castrol 0W40, and since your car calls for thiner oils, Castrol might be better option). Euro oils are spec for turbos, have high HTHS, lower NOACK. If they meet MB 229.5, they are going to leave much less deposits.