Bangchak's posted prices today: B20 diesel 36.44 baht/litre (up 0.75 baht from yesterday), B7 diesel 41.44 baht, gasohol 95 39.94 baht, gasohol 91 39.57 baht, E20 34.94 baht, E85 30.88 baht. Prices exclude the Bangkok local land tax and take effect at 05:00 the next day, so check your station before budgeting fuel for delivery and transport routes. The gap between B20 and B7 is about 5 baht a litre, so a fleet that can run B20 saves real money.