Life on the road: fuel, repairs, maps & phones

Short version: Fuel, mechanics and beds are almost everywhere, so you need less planning than you think. The exceptions: one 240 km stretch of the Ho Chi Minh Road West with barely any fuel, Google Maps' love of a "shortcut", and SIM cards that now need a passport and a face check. Keep the tank above half, your maps offline and a few phrases handy.

Fuel

• Finding it. Stations are frequent on main roads and in every town. An attendant fills the tank and you pay cash. Say đầy bình for a full tank and glance at the pump to see it starts at zero.
• What's sold. Since June 2026 standard petrol is blended with ethanol. Pumps offer E10 RON 95 and, until 2030, E5 RON 92. Either suits a modern small bike: Honda Vietnam says its motorbikes take any petrol of 91 octane or more with up to 10% ethanol. Old carburettor bikes may want a fuel-system clean first, so ask whoever owns yours.
• Small tanks. A typical semi-automatic holds about 4 litres, good for perhaps 150–200 km when loaded. Fill up at half.
• Bottle fuel. Village stalls sell petrol by the bottle (look for a hand-painted xăng sign). It costs more and the quality is anyone's guess, but it will get you to the next pump.

Heads up: Between Khe Sanh and Phong Nha, the Ho Chi Minh Road West runs about 240 km through near-empty mountains. Only two fuel stops are reported: Huong Phung, towards the Khe Sanh end, and Long Son, about 140 km from Khe Sanh and 100 km short of Phong Nha. Either may be shut for lunch or out of petrol (a rider found exactly that in April 2026). Fill up in Khe Sanh, top up at every chance and carry a spare 1.5 litres.

Mechanics and punctures

Look for sửa xe (bike repair) signs; they're in almost every village. Typical prices, approximate for 2025–26:

• Agree the price first. On a rental, phone the shop before anything bigger than a puncture.
• Oil changes. Advice varies. Everyday Vietnamese guidance is every 2,000–3,000 km; rental shops and touring riders often say every 1,000 km or so on a hard-worked small bike, sooner in the mountains. It's cheap, so err early.
• Punctures. Don't ride on a flat; push to the nearest vá xe (puncture repair) stall.

Finding your way

Google Maps has a motorbike (two-wheeler) mode in Vietnam; tap the motorbike icon. It's very good and occasionally unhinged: it has sent riders onto expressways, where motorbikes are banned, and down "shortcuts" that become dirt tracks. In spring 2026 a visitor following it in Lang Son province came off on a forest slope and spent the night in the woods.

• Stick to numbered roads (QL means national highway) unless you know better.
• If the tarmac ends and you weren't expecting it, turn round.
• Compare the suggested route with the obvious main road. A few minutes saved is rarely worth it.
• Download offline areas for your whole route while on Wi-Fi, and keep a second offline app built on OpenStreetMap, such as Organic Maps or Maps.me. Signal vanishes in mountain valleys.

Our stage notes are on the Saigon to Hanoi route page.

SIM cards and eSIMs

The main networks are Viettel, Vinaphone and MobiFone. Viettel is usually rated best in the mountains, though every network has gaps in deep valleys.

• Physical SIM: buy one at a network's own shop or airport counter and take your passport. Since April 2026 new registrations include a face check, and moving the SIM to a different phone can trigger another. Put it in one phone and leave it there. How the rules apply to short-stay visitors wasn't clear from the sources we found, so ask at the counter. Avoid ready-activated SIMs from street sellers; they can be cut off.
• Cost: roughly 150,000–300,000 VND (US$6–12) for a month of generous data. Reports vary, and airports charge more.
• Travel eSIM: set it up before you fly. Most are data-only, so you get no local number for a guesthouse to ring.

Useful apps

• Grab: taxis and food delivery in cities, for days when the bike stays parked.
• Zalo: the messaging app nearly everyone in Vietnam uses, guesthouses and mechanics included.
• Google Translate: download Vietnamese for offline use; the camera reads menus and signs.
• Windy or another radar app: see rain and storms coming.

A bed without booking

• A nhà nghỉ ("rest house") is a simple family-run guesthouse, found in every town and along the highways for about 200,000–400,000 VND a room (2025–26). Khách sạn means hotel.
• Ask to see the room, and wheel the bike inside overnight. That's normal.
• Hosts must register foreign guests, so they'll need your passport details. Now and then a small place isn't set up for foreigners and waves you on; try the next.
• In the northern mountains, homestays offer a mattress in a shared stilt house for about 50,000–130,000 VND, with a family dinner for 130,000–250,000 VND.
• Be parked before dark, which is around 6pm in February. Book ahead at weekends, in hotspots and around Tết.

Running out of time: trains and buses

• Train. The main Saigon–Hanoi line carries motorbikes as freight between larger stations, including Nha Trang, Da Nang, Hue, Dong Hoi, Vinh and Ninh Binh. Go to the station's freight office (vận chuyển) with your passport, the bike's registration card, cash and a phone number. Staff drain the fuel, wrap the bike and give you a receipt. It travels on a separate train and usually arrives in 2–4 days, longer around holidays. Prices are posted at the station. Older reports put a small bike from Saigon to Hanoi at about US$50; we couldn't confirm a 2026 price.
• Rental bike? Ring the shop first. They hold the papers and may arrange it for you.
• Bus. Many long-distance buses will carry a bike in the hold for a negotiated fee. There's no standard price, so ask at the bus station or have your guesthouse phone.

Handy phrases

Costs are covered in What it costs.