Oil Prices Today, 18 Aug 2026: Latest Update on Gasoline-Diesel Prices per Liter

Latest update on oil prices. Oil prices today, 18 Aug 2026. Check prices for all types of fuel including gasoline, gasohol, and diesel from PTT, Bangchak, PT, Caltex, Susco, and Shell gas stations. See the latest price per liter.

Reporter coverage. Update on oil prices today, 18 Aug 2026. Prices for gasoline, gasohol, and diesel updated from the websites of Bangchak Corporation Public Company Limited, PTT Oil and Retail Business Public Company Limited, Shell Company of Thailand Limited, PTG Energy Public Company Limited, Susco Public Company Limited, and Chevron (Thailand) Limited. Today's fuel prices are as follows.

Oil price update for today, 18 Aug 2026.

"Bangchak" fuel prices on 18 Aug 2026.

• Diesel B20 is priced at 32.54 baht per liter.
• Hi Diesel S is priced at 37.54 baht per liter.
• Hi Premium Diesel Plus is priced at 49.25 baht per liter.
• Hi Premium 98 Plus is priced at 49.29 baht per liter.
• GSH E85S EVO is priced at 27.78 baht per liter.
• GSH E20S EVO is priced at 31.84 baht per liter.
• GSH91S EVO is priced at 36.47 baht per liter.
• GSH95S EVO is priced at 36.84 baht per liter.

"PTT" fuel prices on 18 Aug 2026.

• Diesel B20 is priced at 32.54 baht per liter.
• Diesel is priced at 37.54 baht per liter.
• GSH E20S EVO is priced at 31.84 baht per liter.
• GSH91S EVO is priced at 36.47 baht per liter.
• GSH95S EVO is priced at 36.84 baht per liter.
• Gasoline is priced at 45.83 baht per liter.
• Super Power GSH95 is priced at 47.79 baht per liter.
• Super Power X Diesel is priced at 50.05 baht per liter.
• Super Power X 99 is priced at 49.79 baht per liter.

"Shell" gas station prices on 18 Aug 2026.

• Shell FuelSave Gasohol E20 is priced at 32.04 baht per liter.
• Shell FuelSave Gasohol 91 is priced at 36.97 baht per liter.
• Shell FuelSave Gasohol 95 is priced at 37.34 baht per liter.
• Shell V-Power Gasohol 95 is priced at 49.84 baht per liter.
• Shell FuelSave Diesel is priced at 37.54 baht per liter.
• Shell Diesel B20 is priced at 32.54 baht per liter.
• Shell V-Power Diesel is priced at 49.84 baht per liter.

"PT" gas station prices on 18 Aug 2026.

• Diesel is priced at 37.54 baht per liter.
• Diesel B20 is priced at 32.54 baht per liter.
• Gasohol 95 is priced at 36.84 baht per liter.
• Gasohol 91 is priced at 36.47 baht per liter.
• Gasoline is priced at 46.33 baht per liter.
• Gasohol E20 is priced at 31.84 baht per liter.

"Susco" gas station prices on 18 Aug 2026.

• Diesel is priced at 37.54 baht per liter.
• Diesel B20 is priced at 32.54 baht per liter.
• Gasoline 95 is priced at 45.98 baht per liter.
• Gasohol 95 is priced at 36.84 baht per liter.
• Gasohol 91 is priced at 36.47 baht per liter.
• Gasohol E20 is priced at 31.84 baht per liter.

"Caltex" gas station prices on 18 Aug 2026.

• Gold 95 Techron is priced at 49.26 baht per liter.
• Gasohol 95 Techron is priced at 36.84 baht per liter.
• Gasohol 91 Techron is priced at 36.47 baht per liter.
• Gasohol E20 is priced at 31.84 baht per liter.
• Diesel Techron is priced at 37.54 baht per liter.
• Power Diesel Techron is priced at 49.25 baht per liter.
• Diesel B20 is priced at 32.54 baht per liter.

However, the above prices are average rates excluding the local maintenance tax, which may vary by area.