For BYD Shark 6 DMO and Sealion 6 / Seal U DM-i owners curious about the hybrid engine maintenance schedule:

On-Road Impressions, Efficiency & Setup Details

• Oil Spec: Fully synthetic 0W-20 API SP / ILSAC GF-6A low-viscosity hybrid engine oil (3.8–4.2 litres with filter).
• Because DM-i and DMO engines run mostly in their optimal thermal sweet spot (1,600–2,400 rpm steady load) and have electric water/oil pumps, the oil comes out remarkably clean—though doing an early run-in oil & filter change after the first 5,000 km of HEV running is great preventative care!