Bangchak pump prices on 25 Aug 2026: B7 diesel 38.39 baht/litre, B20 diesel 33.39 baht (up 0.85 baht from the previous day), Gasohol 95 37.69 baht, Gasohol 91 37.32 baht, E20 32.69 baht. Prices exclude the Bangkok local land tax and take effect from 05:00 the next day. Check your own station before budgeting fuel for delivery or transport, and consider whether B20 suits your vehicles.