Motul 4100 SYN-nergy 15w-40 Semi Synthetic Car Engine Oil ACEA A3 B4 5L 5 Litres
ACEA specification A3/B4. ACEA A3 / B4. Other than that, there isn't really such a thing as a diesel engine oil as the vast majority of oils are suitable for both petrol and diesel engines, regardless of how they are marketed.