Bangchak's posted pump prices for 13 Aug: High-speed diesel S 37.54 baht/litre, B20 32.54 baht/litre (up 0.85 baht from the previous day), Gasohol 95 36.84 baht, Gasohol 91 36.47 baht, E20 31.84 baht. Prices exclude the Bangkok local land tax and may differ at individual stations. Tomorrow's prices take effect at 05:00. If your fleet or delivery costs run on diesel, re-check your monthly fuel budget and pricing, and compare B20 against S where your vehicles allow it.