Korean Gas Stations: Fuel Types, Payment & Self-Service Guide

Refueling a rental car in Korea looks simple until you pull up to a self-service pump where everything is in Korean and your foreign card gets rejected. Most drivers waste 10 minutes the first time, then never think about it again. This guide walks you through fuel types, station brands, payment methods, and the small differences between full-service and self-service so you can fill up like a local.

Which Fuel Does Your Rental Car Take?

Korea sells four common fuels at standard stations: gasoline (휘발유), diesel (경유), LPG (LPG/액화석유가스), and a small amount of premium gasoline (고급휘발유). Almost every rental from Lotte, SK, Hyundai Capital, or AJ will be regular gasoline or diesel. Confirm at pickup by checking the inside of the fuel door, where the fuel type is printed in both Korean and English.

Pick the wrong nozzle and you can damage the engine. Diesel in a gasoline car is the more expensive mistake (engine flush plus a tow), so always check the label before you squeeze. As of early 2026, average prices hover around 1,650 KRW per liter for regular gasoline and 1,520 KRW per liter for diesel, with LPG closer to 1,100 KRW per liter.

• Gasoline (휘발유): Yellow handle, most rentals
• Diesel (경유): Green handle, SUVs and some sedans
• Premium (고급휘발유): Red handle, imported cars only
• LPG: Separate dedicated pump, only LPG-converted cars

The Major Station Brands

Four brands cover roughly 90% of Korean stations and you will see their colors from any highway exit. SK Energy (red) is the largest network with the most highway rest-stop locations. GS Caltex (orange) is the second largest and runs many self-service stations. Hyundai Oilbank (green) is common in the Seoul metropolitan area, and S-Oil (yellow) often has the lowest posted price in any given neighborhood.

Independent and supermarket-affiliated stations exist too, especially around E-Mart and Costco, but the four majors are the safest bet for tourists because they accept the widest range of cards and post English fuel-type labels. Highway rest-stop stations are slightly more expensive than city stations, often by 50 to 100 KRW per liter.

Full-Service vs Self-Service

Korean stations split into two clear categories. Full-service stations have attendants in colored jumpsuits who refuel, clean your windshield, and process the payment. You stay in the car, hand them your card, and tell them the amount: "가득이요" (gadeuk-iyo, "fill it up") or "오만 원" (oh-man won, "50,000 won worth").

Self-service stations (look for the word 셀프 in big letters) are 30 to 80 KRW per liter cheaper. The trade-off is a touchscreen entirely in Korean for first-timers. Newer machines from SK and GS Caltex have an English-language button in the top-right corner, but older terminals do not. If the menu is Korean-only, ask the attendant to start the pump for you; they are usually willing.

Will Your Foreign Credit Card Work?

This is the question most tourists worry about, and the honest answer is: usually yes at full-service stations, often no at self-service kiosks. Full-service attendants run cards through the same Visa and Mastercard terminals you see in shops, and the success rate for foreign cards is high. The card just needs to support overseas transactions and not be blocked by your bank for Korea.

Self-service kiosks are stricter. Many older terminals only accept Korean-issued credit cards because they require a domestic CVC check. To avoid getting stranded, carry enough Korean cash (about 70,000 KRW for a full tank on a midsize sedan) or use a travel debit card that has been pre-loaded with Korean Won. As a last resort, walk into the station's convenience corner and the staff can swipe your card manually for the pump number you want.

• Most reliable: Full-service attendant + Visa/Mastercard
• Cheaper but risky: Self-service kiosk + foreign card
• Always works: Cash (clean 50,000 or 10,000 won notes)
• Backup option: Ask staff to process card inside the office

Step-by-Step at a Self-Service Pump

Even if the screen is in Korean, the order of operations is the same at every brand. Park so your fuel door faces the pump (Korean rentals have fuel doors on the driver side, opposite of the US). Turn off the engine. Tap the screen to wake it, then look for a payment icon: a credit card outline or the words 신용카드 (credit card) or 현금 (cash).

Insert your card or cash, then choose fuel type (휘발유 for gasoline, 경유 for diesel) and amount. Most foreigners pick 금액 (by price, e.g. 50,000 KRW) instead of liters because the math is easier. Squeeze the trigger until the pump clicks off automatically, hang the nozzle back up, and take the receipt (영수증) printed at the kiosk. The whole process takes about three minutes once you have done it once.

Where to Refuel on a Road Trip

On a long drive you have two choices: highway rest-stop stations or exit-and-return city stations. Rest-stop stations are convenient because they are inside the expressway and let you combine fuel, restrooms, and food. They are also the most foreigner-friendly because attendants there see international tourists every day.

City stations just off the expressway exits can be 100 to 200 KRW per liter cheaper, but you lose 10 to 15 minutes navigating local roads. The savings only matter on a big tank. For most rental trips, the rest-stop premium is worth the time. Use Naver Map or Kakao Map and search 주유소 (gas station) to see live prices and distance to your next stop.

Returning the Rental: Fuel Policy

Almost every Korean rental company uses a full-to-full policy: you receive the car with a full tank and must return it the same way. If you return it empty, the rental company will refill it at a heavily inflated rate, often 2,500 KRW per liter plus a service fee of around 20,000 KRW. The cheapest play is to fill the tank at a station within 2 km of the return location and save the receipt.

At airport returns, look for the SK or GS Caltex stations on the perimeter road right before the rental drop-off. They are placed there specifically for departing customers, and the attendants are used to fast, English-speaking turnarounds. Keep the receipt on your phone in case the agent asks for proof.

Quick Tips

1. 1Take a photo of the fuel-type label inside the fuel door at pickup so you never second-guess.
2. 2Carry at least 70,000 KRW in cash as a backup for self-service stations that reject foreign cards.
3. 3Say "가득이요" to ask for a full tank at full-service stations.
4. 4Use Naver Map's gas-station filter to compare prices on your route in real time.
5. 5Refuel within 2 km of the rental return point and keep the paper receipt.

FAQ

Once you have refueled once at a Korean station, the rest of your trip becomes routine. Start at a full-service station for your first stop, then graduate to self-service as your confidence grows.