When COVID-19 supply chain disruptions triggered the UK fuel crisis of September 2021, nearly 100,000 petrol stations ran dry within days — not because there was a physical shortage of fuel in the country, but because panic buying overwhelmed the distribution system. This pattern repeats reliably: a rumour or a genuine supply disruption triggers a buying rush that instantly creates the shortage people were afraid of. The people who fare best in fuel shortages are those who have quietly maintained a modest ongoing fuel reserve, who understand how to conserve what they have, and who have thought through alternatives before the crisis makes alternatives unavailable.
Before a Shortage — Building a Fuel Reserve
How Much to Store
A reasonable home fuel reserve balances practicality, cost, and safety. Most regulatory frameworks and fire codes permit households to store modest quantities of petrol:
| Country/Jurisdiction | Typical Permitted Home Storage |
|---|
| UK | Up to 30 litres (two 15L containers) — no notification |
| UK | 30–275 litres — requires local authority notification |
| US (residential) | Up to 25 gallons (~95L) in approved containers |
| Australia | 250 litres in approved containers with appropriate storage |
Check your local regulations before storing. Exceeding limits without notification or appropriate storage is a legal violation and a genuine fire hazard.
Fuel Storage Containers
- Use only containers specifically approved for flammable liquid storage — these have vented closures, are made of appropriate-grade plastic or metal, and are colour-coded (red for petrol/gasoline, yellow for diesel in many jurisdictions).
- Never use jerry cans that previously held water, food, or other liquids.
- Never store petrol in glass containers, un-vented containers, or non-approved plastics.
- Diesel is less flammable than petrol — safer to store in larger quantities.
Fuel Stabiliser
Petrol has a short shelf life — it degrades within 3–6 months without stabiliser, forming gum deposits that clog carburettors and fuel injectors.
- Add a fuel stabiliser (such as Sta-Bil or PRI-G) to stored petrol.
- Mix per instructions (typically 1 part stabiliser per 100–500 parts fuel).
- Stabilised petrol can last 1–3 years depending on the product.
- Diesel is more stable — generally 6–12 months without stabiliser; biofuel blends less stable.
Rotation Practice
- Label containers with fill date.
- Rotate fuel into your vehicle regularly and refill containers with fresh fuel.
- A rotation cycle of 3–6 months keeps fuel fresh and ensures your supply is usable.
Storage Location
- Store fuel in a detached garden shed, garage, or external storage structure — not inside the house.
- Keep away from ignition sources: boilers, water heaters, electrical panels, any open flames.
- Store at ground level, not on shelves (liquid weight + fall risk).
- Keep in a locked enclosure if children or young people are present.
- Ensure adequate ventilation — petrol vapour is heavier than air and will pool at floor level.
⚠️ Petrol vapour mixed with air in the right proportions is explosive. The vapour from a single litre of petrol can fill a large room. Store petrol outdoors or in well-ventilated external storage only.
During a Fuel Shortage — Rationing and Conservation
Vehicle Fuel Conservation
When fuel is scarce, every litre must do more work:
- Reduce speed. Fuel consumption increases roughly with the square of speed. At 70 mph vs. 55 mph, fuel use increases by approximately 25–30%.
- Anticipate and coast. Accelerating smoothly and braking gently (anticipating lights and junctions) reduces fuel consumption by 15–20% versus aggressive driving.
- Reduce idling. Modern engines use essentially no fuel when decelerating with the throttle closed (engine braking). Turn the engine off for any stop longer than 60 seconds.
- Tyre pressure. Under-inflated tyres increase rolling resistance and fuel consumption. Check and inflate to manufacturer recommended levels.
- Remove excess weight and drag. Roof racks, bike carriers, and heavy loads increase fuel consumption. Remove when not needed.
- Combine trips. A cold engine uses significantly more fuel than a warm one. Combining errands into a single journey when the engine is already warm saves meaningfully.
- Reduce air conditioning. AC increases fuel consumption by 5–15% in urban driving. Use ventilation where temperature allows.
Prioritising Fuel Use
In a genuine shortage, develop a fuel priority hierarchy:
| Priority | Use | Reasoning |
|---|
| 1 | Medical emergencies, medication collection | Life-critical |
| 2 | Work (if income-critical) | Livelihood |
| 3 | Food and essential supply collection | Sustenance |
| 4 | Generator (if critical medical equipment) | Life-support |
| 5 | Heating fuel (winter) | Comfort and safety |
| 6 | Non-essential travel | Defer |
Generator Fuel Rationing
If running a generator on limited fuel:
- Run only for essential loads. Identify the minimum power draw: charging phones and battery packs, running a medical device, or keeping a freezer cold for critical food.
- Run in cycles. Rather than continuous operation, run the generator for 1–2 hours, charge everything, then shut down. A freezer will maintain temperature for 4–6 hours with the door closed.
- Calculate runtime. Know your generator's fuel consumption rate (typically listed in the manual in litres/gallons per hour at various loads). Divide your available fuel by this rate to know how long you can run.
- Reduce load. Every watt drawn from the generator uses fuel. Use LED lighting, run only one appliance at a time.
A typical 3 kW portable generator consumes approximately 1.5–2 litres of petrol per hour at half load. 20 litres of stored petrol = approximately 10–13 hours of generator runtime.
Finding Fuel During a Shortage
Fuel Queue Safety
If you must queue for fuel:
- Never leave the engine running in a stationary queue for extended periods — this wastes fuel and causes CO accumulation if the queue is enclosed (multi-storey car park).
- Keep a safe distance between vehicles.
- Have the exact payment method ready. Card readers at stations may fail or charge surcharges for small amounts.
- Do not confront other drivers about queue jumping. Violence at fuel queues is a documented phenomenon during shortages.
- Go early or late. Queues tend to be longest in the mid-morning and after work. Early morning (before 7 am) or late evening typically sees shorter queues.
Alternative Sources
- Rural petrol stations and smaller towns often have less competition than city centre stations during a shortage.
- Supermarket stations typically have larger storage tanks and more frequent tanker deliveries.
- Farm supply stores in agricultural regions may carry diesel (agricultural/red diesel is dyed and has tax implications if used in road vehicles; check local law).
Alternative Transport
Reducing reliance on motor vehicles extends your fuel reserve dramatically:
Cycling
- The most fuel-efficient transport available.
- Maintain your bicycle before an emergency — check tyres, brakes, and chain regularly.
- Carry a puncture repair kit.
- A cargo bike (front or rear rack) can carry significant loads.
Electric Bicycles and Scooters
- Rechargeable from mains electricity or solar.
- Range of 30–80 km per charge depending on model.
- Reduces fuel dependency for medium-distance journeys.
Walking
- Underestimated as a practical transport mode.
- A fit adult walks at 5–6 km/h; 10 km is a manageable 2-hour walk for most purposes.
Carpooling and Community Transport
- Coordinate with neighbours, colleagues, and community members.
- One vehicle carrying four people uses 25% of the fuel per person.
- Community mutual aid networks often organise transport sharing during crises.
Public Transport
- Even partially functional public transport dramatically reduces individual fuel needs.
- Prioritise public transport over personal vehicle use when available during a shortage.
Long-term Shortage Planning
If a fuel shortage extends beyond days into weeks or months:
- Reduce fuel dependency. Identify which activities absolutely require motorised transport and which can be substituted by cycling, walking, or restructuring routines.
- Local supply chains. Establish relationships with local food suppliers, markets, and shops within walking or cycling distance.
- Vehicle sharing. Formalise carpooling arrangements with trusted people.
- Electric vehicle planning. If an electric vehicle is possible for your circumstances, it eliminates petrol/diesel dependency for transport.
- Community resilience. A community with a diversity of transport modes, local supply chains, and cooperative arrangements is far more resilient than isolated households each individually dependent on private vehicle access.
Quick Reference
| Situation | Action |
|---|
| Shortage announced or anticipated | Fill vehicle tank and approved containers immediately |
| Storing petrol | Approved containers, external storage, fuel stabiliser, labelled with date |
| Maximum home storage | Check local regulations; typically 30L (UK) to 95L (US) without notification |
| Conserving fuel | Reduce speed, combine trips, anticipate braking, check tyre pressure |
| Generator rationing | Run in cycles for essential loads; calculate hours from consumption rate |
| Queuing for fuel | Engine off while stationary; carry card and cash |
| Out of fuel | Cycle, walk, carpool, public transport |
| Petrol smell from storage | Move immediately outdoors; eliminate ignition sources |
This article provides general guidance on fuel shortage preparedness and conservation. Fuel storage regulations vary by jurisdiction — always verify local rules before storing flammable liquids at home. Store, handle, and use fuel strictly in accordance with fire safety standards.