Bangchak's reference prices for 20 Oct 2026: diesel B7 42.94 baht/litre, B20 37.19 baht (unchanged), gasohol 91 41.07 baht, gasohol 95 41.44 baht, E20 35.69 baht. Prices exclude the Bangkok local-land-tax levy and may differ at individual stations. The article says tomorrow's prices take effect tomorrow. For fleets and delivery vehicles, the B20 vs B7 gap of about 5.75 baht per litre is worth checking against which blend your vehicles can run on.