Completed a 30,000 km High-Mileage Update interstate tour in our BYD Sealion 6 DM-i (18.3 kWh Blade Battery + Xiaoyun 1.5L/1.5T hybrid) testing Auto SOC vs Save SOC strategies.

Best Highway HEV + SOC Strategy:
- Setting HEV Mode + Save SOC at 50% before entering 110 km/h highway stretches keeps the battery in its peak efficiency window and prevents high-RPM generator recovery on steep climbs.
- Fuel Consumption: Averaged 4.7 L/100km on the Dynamic FWD (and 5.6 L/100km on the twin-motor Premium AWD).
- 18 kW DC Fast Charging + 6kW V2L: Having CCS2 DC fast charging on a PHEV means a 25-minute lunch stop refills the battery from 25% to 80% for pure EV city driving.