Fuel Priority Allocation During a Shortage

During an extended fuel shortage, the question is not just how to conserve fuel but how to allocate a finite supply between competing uses. A household that uses generator fuel for lighting while running out of fuel for a medical-needs vehicle has made the wrong trade-off. A clear priority framework prevents these decisions from being made reactively under stress.

Establishing Your Fuel Needs Inventory

Before allocating, understand what you are allocating between:

Use	Fuel Type	Daily Consumption	Essentiality
Primary vehicle (evacuation/medical)	Petrol/Diesel	Varies by use	Critical
Generator (full-time)	Petrol/Diesel	3–8 litres/day	High if power critical
Generator (selective)	Petrol/Diesel	0.5–2 litres/day	Moderate
Heating (oil, kerosene)	Heating oil/kerosene	Varies by temperature	High in cold
Portable cooking stove	LPG/butane	~0.3 litres/day	Moderate
Secondary vehicle	Petrol/Diesel	Varies	Lower
Power tools	Petrol	Per use	Variable

Your household's specific inventory may differ. The key is to list all fuel-consuming devices and their approximate daily consumption before a shortage occurs, not during it.

The Priority Framework

Tier 1 — Life Safety (Cannot Compromise)

1. Evacuation vehicle fuel — maintain a minimum half-tank for emergency evacuation at all times. This is a hard reserve; do not draw it down for convenience use.
2. Medical equipment — if any household member depends on fuel for medical devices (oxygen concentrator via generator, for example), this use takes absolute priority.
3. Heating in life-threatening cold — if outdoor temperatures are below freezing and your only heating is fuel-based, this is Tier 1.

Tier 2 — Health and Function (High Priority)

4. Essential vehicle travel — medical appointments, supply runs, emergency transport for community members.
5. Generator for refrigerated medications — insulin and other temperature-sensitive medications represent a health-critical use.
6. Generator for communication devices — maintaining phone and radio capability keeps you connected to emergency information.

Tier 3 — Comfort and Convenience (Defer in Shortage)

7. Generator for lighting — switch to battery and candle lighting to preserve fuel.
8. Generator for appliances — washing machine, entertainment, etc.
9. Non-essential vehicle use — social travel, non-critical errands.
10. Power tools for non-emergency work — defer until supply normalises.

Practical Allocation Rules

The Half-Tank Rule

Keep your primary evacuation vehicle at or above half a tank at all times. Treat the lower half as a reserve that requires a genuine reason to use. Refuel whenever you are at 3/4 tank if fuel is available, rather than waiting until low.

Generator on Intermittent Cycles

Running a generator continuously consumes 3–8 litres per day. Running it on cycles — two hours morning, two hours evening — for specific purposes consumes 0.5–1.5 litres per day with significant remaining usefulness:

• Morning cycle: charge phones and devices; run refrigerator briefly
• Evening cycle: run heating for a period; charge devices; power lights

Each household should determine their specific intermittent cycle based on actual needs.

Shared Fuel Community Model

During extended shortages, communities that pool limited fuel achieve better outcomes than households competing:

1. One vehicle per group for supply runs
2. Generator sharing rotations between households
3. Collective purchasing when supply becomes available
4. Priority allocation to medical needs across the community

⚠️ The most common fuel shortage mistake is using generator fuel for non-essential comfort (constant power for entertainment, excessive lighting) while allowing the evacuation vehicle's tank to drain. Establish Tier 1 reserves first.

Tracking Consumption

A simple daily log prevents fuel from disappearing faster than expected:

• Record what was used and for what purpose each day
• Estimate remaining supply and days-of-reserve at current consumption rate
• Adjust consumption when projected reserve falls below your safety margin

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Quick Reference

Priority	Use	Rule
Tier 1	Evacuation vehicle; medical equipment; life-safety heating	Never draw below minimum reserve
Tier 2	Essential travel; refrigerated medication; communication devices	Allocate before convenience uses
Tier 3	Lighting; non-essential travel; appliances	Defer or eliminate during shortage
Generator	Intermittent cycles save 70%+ vs. continuous	Morning + evening cycles for specific uses
Community	Pool vehicles and generators — more efficient than household competition
Tracking	Daily log; calculate days of reserve; adjust before reserve is critical