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How to Plan Fuel, Water and Emergency Stops on an Expedition

Overlanding · Overlanding and road trips · 2 min read · Researched guide · Last updated 2026-10-23

In short: Plan an expedition around three margins: fuel range with a reserve, drinking water per person per day, and a communication and emergency plan. Mark the last fuel, water and help points on your route, and refuel early rather than late.

Quick facts

Fuel ruleRefuel when around half a tank on remote stretches
Water ruleAt least 3 litres per person per day for drinking in mild weather, more in heat, plus cooking and washing
Emergency numbers112 national emergency; 1033 NHAI highway helpline

Fuel: know your range

Range = usable tank volume x real-world mileage. Hills, luggage, air-conditioning and loose surfaces lower mileage. On remote stretches, refuel at about half a tank and carry a sealed reserve in an approved container if the route needs it.

  • Mark every fuel station on your route and note their last-known status.
  • Never assume a station is open or has stock in remote areas.
  • Store reserve fuel safely and away from passengers.

Water: carry more than you think

  • Plan at least 3 litres per person per day for drinking in mild weather, and more in heat or at altitude.
  • Add water for cooking and washing.
  • Carry a means to treat water (filter, purification tablets or boiling) as a backup.

Communication and emergencies

  • Download offline maps and save key contacts offline.
  • Share your route and expected check-in times with someone at home.
  • Save India's emergency number 112 and the NHAI highway helpline 1033.
  • On routes without mobile coverage, consider a satellite messenger.

Build a stop plan

StagePointNotes
StartFull tank, full water, vehicle checks doneUse the vehicle checklist
MidpointFuel, water, food stopDecide in advance, not on the day
Last help pointFinal fuel and phone coverageMark it on your map
OvernightCamp or stay confirmedDo not rely on finding space at dusk

Related guides

Run the pre-trip vehicle checks, build a budget, and carry the right recovery kit. Newcomers should start with overlanding in India for beginners.

Frequently asked questions

How much water should I carry per person?

At least 3 litres per person per day for drinking in mild weather, and more in heat, plus extra for cooking and washing.

When should I refuel?

On remote stretches, treat about half a tank as the point to refuel.

What number do I call in an emergency?

112 is India's emergency number; the NHAI highway helpline is 1033.

Do I need a satellite messenger?

Only on routes without reliable mobile coverage, but it can be life-saving when you do.

Read next

Rules, closures, fees and conditions change. Confirm with the relevant authority before you travel, and treat this guide as planning help, not a substitute for local advice.

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