A generator only protects your home or business if it can run when the power goes out. After a Hudson Valley ice storm or heavy snowfall, fuel may be harder to find, roads may be slow to clear, and a last-minute refill can become one more problem during an already stressful day. This generator fuel checklist helps you prepare before severe weather arrives, with practical steps for portable and standby systems.
Your exact needs depend on the generator, the fuel it uses, and what you expect it to power. A portable unit keeping a refrigerator, sump pump, and a few lights running has a very different fuel plan than a whole-home standby generator. The goal is the same: know what you have, what you will use, and how you will keep the supply safe.
Start Your Generator Fuel Checklist With Runtime
The most useful number is not simply your tank or container size. It is how many hours of operation that fuel supply provides at the load you expect to carry. Find your generator’s fuel-consumption information in the owner’s manual. Most manufacturers show usage at different load levels, often 25%, 50%, and 75% of rated capacity.
Next, make a realistic list of the equipment you would run during an outage. Consider heat equipment, a well pump, refrigerator or freezer, sump pump, medical equipment, internet equipment, lighting, and one or two necessary appliances. Starting watts can be much higher than running watts for pumps, refrigerators, and motors, so your electrical plan affects your fuel plan.
Do not assume the generator will run at its lowest listed fuel-use rate. Cold weather, battery charging, added appliances, and longer operating hours all increase demand. Planning a reserve beyond your expected outage window gives your household or facility more flexibility if restoration takes longer than expected.
Keep a Written Fuel Record
Record the generator’s fuel type, tank or container capacity, estimated hourly fuel use, and your most recent fuel level. Keep this information with the generator manual, and save a copy where the person responsible for the property can find it quickly.
For a standby generator connected to a propane tank, confirm whether the tank serves other appliances as well. Home heating, water heating, cooking, fireplaces, and pool equipment may all draw from the same supply. A generator can be a major additional load, especially during the same winter weather that increases heating demand.
Match the Checklist to Your Fuel Type
Fuel storage rules and supply planning vary by fuel. Follow the generator manufacturer’s requirements first, then use the fuel-specific guidance below to build a plan that fits your system.
Propane Generators
Propane is a practical choice for many standby generators because it is stored outside the home in approved tanks and does not degrade over time in the way gasoline can. The main concern is maintaining enough available fuel for the generator and the rest of your propane appliances.
Check the tank gauge before forecasted storms, but do not rely on a quick visual check alone. Review how much propane your generator uses during an outage and whether other household loads are likely to be high. If your property has a standby generator, tell your fuel provider it is connected to the system so delivery planning and tank sizing can reflect that demand.
Automatic delivery and wireless tank monitoring can reduce the chance that a busy household overlooks a declining fuel level. They are especially helpful for seasonal homes, rental properties, businesses, and customers who do not want to make a gauge check part of every winter routine. First Fuel & Propane can help customers assess whether their existing propane supply arrangement supports standby-generator use.
Portable propane generators require the right cylinders, hoses, regulator setup, and connection method specified for that model. Do not modify fittings or use damaged cylinders. Keep spare cylinders upright, outdoors, protected from impact, and away from ignition sources.
Gasoline Generators
Gasoline is common for portable generators, but it requires more attention because it can lose quality over time. Use only approved fuel containers, label them clearly, and store them in a cool, dry, well-ventilated location away from living spaces, flames, equipment that can spark, and direct sunlight.
Rotate gasoline according to the fuel and stabilizer manufacturer’s recommendations. If you use a stabilizer, add it when the fuel is fresh, not after it has been sitting for months. A generator that starts easily on a test day may still fail under load if old fuel has caused deposits in the carburetor or fuel system.
Never refill a hot generator. Shut it down, allow it to cool, and clean up any spill before restarting. Keep a suitable fire extinguisher nearby and make sure every adult who may operate the equipment understands the refueling procedure.
Diesel Generators
Diesel systems are common in commercial, agricultural, and larger backup-power applications. Their fuel plan should address water contamination, microbial growth, cold-weather performance, and periodic fuel testing when diesel is stored for extended periods.
Inspect tanks for leaks, damaged fittings, or signs of water at the bottom of the tank. Maintain filters as required by the equipment manufacturer. For properties that depend on diesel backup power for business continuity, fuel quality is a maintenance issue, not just a storm-preparation task.
Store Fuel Safely and Keep It Accessible
A full fuel supply is not helpful if snow, ice, vehicles, or stored materials block safe access. Walk the route to your outdoor propane tank, fuel storage area, and generator before winter weather arrives. Keep the area clear enough for a delivery vehicle, service technician, or family member to reach it safely.
For any fuel type, use this quick safety check before a storm:
- Verify that tanks, cylinders, caps, valves, hoses, and connections show no visible damage or leaks.
- Make sure fuel containers are approved for their contents and stored according to local codes and manufacturer instructions.
- Clear snow, brush, loose materials, and combustibles from the generator operating area and fuel access route.
- Keep generator exhaust well away from doors, windows, vents, garages, crawlspace openings, and neighboring structures.
- Confirm that working carbon monoxide alarms are installed inside the home or building where required.
- Keep the generator outdoors, on a stable surface, and protected from rain or snow with a manufacturer-approved cover or properly designed open-sided shelter.
Never run a portable generator in a garage, basement, shed, enclosed porch, or near an open door or window. Carbon monoxide can build up quickly and cannot be seen or smelled. A generator should also never be connected directly to household wiring without a properly installed transfer switch or approved interlock. Backfeeding power can seriously injure utility workers and damage equipment.
Test the Generator Before You Need It
Fuel preparation and generator maintenance belong together. Start and exercise the generator according to the manufacturer’s schedule, preferably before the weather turns severe. Test the electric start, battery condition, oil level, air filter, and load performance. For portable units, confirm that extension cords are heavy-duty, rated for outdoor use, and properly sized for the appliances they will serve.
For standby systems, schedule professional service at the recommended interval. A technician can identify battery issues, worn components, error codes, transfer-switch concerns, and fuel-supply problems that may not be obvious during a short self-test. If the generator is connected to propane, make sure any changes to your home, such as a new boiler, range, pool heater, or addition, are reflected in the fuel-supply plan.
Plan for Delivery Conditions, Not Just Fuel Level
Storm readiness is also about giving your fuel provider a safe way to serve your property. Keep your driveway plowed or passable, mark tank locations if deep snow is common, and ensure gates are unlocked when a delivery is expected. If a property is vacant or used only on weekends, arrange for someone to monitor access after major weather.
Commercial customers should assign a primary and backup contact who can approve deliveries, report changed operating hours, and communicate generator use during an outage. This is particularly valuable for facilities with refrigeration, essential services, tenant needs, or equipment that cannot be shut down for long.
A dependable fuel plan does not begin when the lights go out. Check your generator, calculate your likely runtime, and put a safe supply plan in place while the forecast is still calm. That preparation gives your family, employees, or tenants one less urgent decision to make when the weather turns.