How prices work
TREX answers one question: fill up tonight, or wait? For the fuels you use, with the source and update time on every price.
When prices change
New prices start at the time announced, at every brand at once: usually 5 am, sometimes just after midnight. They're usually announced the afternoon or evening before, so the Today page can tell you whether to fill up tonight or wait, and when the new prices start.
The date changes at midnight, but the price changes at the announced time. Until then, yesterday's price still applies.
What the labels mean
- Verified
- Two sources agree on the price.
- From EPPO
- One source has the price. The label names the source and the time.
- Estimated
- This brand hasn't published tomorrow's price, so PTT's announced change is applied to its price. Only for regular grades, never Shell or premium fuels.
- As of 5:05 pm
- Not confirmed in the last 36 hours. Shown in grey and never as the main price.
Bangkok prices
These are Bangkok reference prices. Stations in other provinces may charge a little more.
Brands
Regular grades cost the same at most brands. Shell is usually ฿0.20–0.50 more. Premium fuels vary by brand.
Esso stations are now Bangchak, so they're listed under Bangchak.
Sources
Fuel prices: Energy Policy and Planning Office (EPPO), Ministry of Energy — eppo.go.th
Prices in effect for every brand. EPPO doesn't publish tomorrow's prices.
TREX doesn't sell fuel and is never paid to rank prices. “Verified” can't be bought.