Could anyone please advise which oil to choose for my audi a3 2.0 tdi bkd engine?I went to national tyre website and after entering my car's reg number it suggest two oil types as follows
Castrol Edge 5W30 Full Synthetic (includes oil filter)
Castrol Edge 5W40 Turbo Diesel (includes oil filter)
and I am clueless which one to choose.
Many thanks for advices