Bangchak's 15 Aug pump prices: high-speed diesel 37.54 baht/litre, B20 biodiesel 32.54 baht (up 0.85 baht from the previous day), gasohol 95 at 36.84 and E20 at 31.84. Prices are reference only and exclude the Bangkok local land tax; tomorrow's prices take effect at 05:00. For fleet or delivery businesses, check fuel budgets and pump prices today, and compare B20 against standard diesel for vehicles that accept it.