Prepare a car for winter storage by following its owner’s manual, cleaning and drying it, arranging battery care, checking fluids and setting the correct tire pressures. Write down any periodic checks the manufacturer requires. Avoid applying one storage recipe to every classic, convertible or infrequently driven car: battery chemistry, modified equipment and the storage location can change the procedure.
This checklist is for planning seasonal storage. It does not replace a vehicle-specific service procedure, and its gasoline-fuel advice does not apply to an electric vehicle’s traction battery.
Before you park: record the decisions
Keep a storage sheet with the keys. Add the storage date, odometer reading, service receipts and the date you expect to use the car again. If someone else checks it over winter, give them the same instructions.
| Item | What to record |
|---|---|
| Battery | Voltage, chemistry, approved care method and next check |
| Fuel | Fuel type, fill date and any approved treatment used |
| Tires | Specified cold pressures and measured readings |
| Fluids | Service dates, levels and unresolved leaks |
| Location | Access, moisture concerns and inspection arrangements |
| Restart | Required checks and anything disconnected or removed |
For a car that will remain in regular use, start with our fall car-care checklist instead. A winter commute and several months parked call for different preparation.
Tire pressure: use the applicable specification
Do not automatically inflate to the maximum printed on a tire’s sidewall. NHTSA’s tire guidance directs owners to the vehicle’s label or manual for recommended pressure. Check it with a gauge when the tires are cold. If the vehicle or tire manufacturer gives a specific storage instruction for your setup, resolve that instruction before changing pressures.
Record each reading so a later loss is easier to spot. Our low-tire-pressure guide explains pressure checks and when a tire needs attention. Persistent vibration, visible damage or a tire that will not hold pressure deserves a professional inspection.
For lengthy storage, ask the tire manufacturer and your mechanic whether movement, tire supports or a properly supported raised vehicle is appropriate. Do not improvise a support arrangement or assume a lifting point is suitable for months of storage. This checklist provides no universal jack-stand interval or guarantee against flat spots.
Battery care: identify the battery before the charger
Read the vehicle, battery and charger instructions together. Record the battery’s voltage and chemistry, the approved charging mode and whether the equipment permits extended maintenance charging in your storage environment. A charger advertised as “smart” still needs the correct setup.
For example, NOCO’s GENIUS1 instructions describe selectable 12V lead-acid, AGM and lithium modes, with a separate action for 6V mode. That is why automatic voltage or chemistry selection should never be assumed from a product category or price.
If mains power is unavailable, ask the vehicle manufacturer or a qualified technician about disconnection and a scheduled charge-check plan. Consider access and any electronic systems affected before disconnecting anything. For a modified classic with uncertain wiring, have the setup identified first; our classic-project assessment guide covers the wider inspection questions.
Fuel treatment: follow the product and vehicle directions
Check the vehicle’s storage guidance before choosing a fuel treatment. Use a product approved for the fuel involved and follow that product’s dose and circulation instructions. Keep a note of the exact formulation; similarly branded treatments may have different directions.
Gold Eagle’s STA-BIL Storage directions specify fresh gasoline, one ounce per 2½ gallons, and five minutes of engine operation after adding it. The company also says the additive does not restore old gasoline. Those are directions for that product, not a universal recipe for diesel, every stabilizer or a contaminated tank.
Follow the vehicle’s filling instructions and leave the required expansion space. Do not top off beyond the pump’s automatic shutoff to chase a completely full tank. If a carburetor or modified fuel system needs a separate procedure, get that procedure from its maker or a specialist rather than guessing whether to drain it.
Prepare the space and choose the right periodic checks
Choose a dry, ventilated storage location and put the car away clean. Deal with water entry and known leaks before covering it. Inspect the space periodically rather than assuming an indoor parking spot will remain dry. Follow the cover maker’s fit, surface-preparation and storage instructions if using a cover.
The 2024 F-150 storage instructions, for example, include an oil-and-filter change before storage and periodic engine operation. This illustrates why “never start a stored car” is too broad: use the instructions for your own model and its equipment. Do not substitute an arbitrary five-minute monthly idle or assume every car needs another oil change solely because four months have passed.
Engine operation also requires a safe location. The CDC warns against running a car in a garage attached to a home, even with the door open. Arrange a safe way to carry out the prescribed procedure; an open door does not make an attached garage suitable for warming the car up.
Leave a spring restart plan
Before the first drive, review the storage sheet and inspect for leaks, tire problems, damaged wiring and anything removed or disconnected. Confirm the vehicle is ready for road use before taking it out. Our first-drive shakedown checklist gives that inspection its own sequence.
Keep storage costs and deferred repairs with the rest of the project records. If the car needs more than routine preparation, the Classic & Restoration guides can help you plan the work before another season passes.
Editorial note: Substantively updated September 22, 2026. This researched checklist uses the primary references linked above; it is not a hands-on storage test. The classic-car photograph is illustrative and does not show a recommended storage setup.
