A car that sits for months can develop flat batteries, stale fuel, flat-spotted tyres and unwelcome visitors. Knowing how to store a car long term helps you avoid these problems and saves you from costly repairs when you return. This guide covers the main steps, from choosing a location to waking the car up safely.
Choose the Right Location
An enclosed, dry, well-ventilated garage or storage unit is the best choice. It protects the car from sun, rain, dust and temperature swings. If you must store it outdoors, choose a safe, level spot and use a breathable cover that fits well.
Avoid plastic covers that trap moisture, since they can cause rust and mould. Consider security as well, and check that your insurance covers the car while it is in storage.
If a friend or relative can check on the car now and then, that is a useful extra layer of protection and reassurance.
Clean It Inside and Out
Wash and dry the car thoroughly, since dirt, bird droppings and insects can damage the paint if left for months. A coat of wax adds protection. Clean the interior, remove all food and rubbish and vacuum carefully, so pests are not tempted.
Make sure the car is fully dry before storing it. Leaving a small, moisture-absorbing product in the cabin can help, but check your manual and local conditions for other advice.
Remove valuables, documents and any items that could melt or leak in heat, such as lighters, aerosol cans and sunscreen.
Look After Fluids, Fuel and the Battery
Fuel can degrade over time. Many owners fill the tank to reduce moisture buildup and use a fuel stabiliser suitable for their engine. Ask a professional whether this is right for your car. Consider changing the oil before storage, since used oil can contain contaminants.
Batteries slowly lose charge when parked. For longer storage, a maintainer designed for your battery type can keep it healthy, or you may disconnect it if your manual advises. Never improvise with electrical equipment, and follow instructions for your car.
Also check the coolant and brake fluid levels, and make sure they are in good condition. Fresh fluids resist corrosion and moisture better than old ones.
Protect Tyres, Brakes and Pests
Tyres can develop flat spots when a car stays in one position. Inflate them to the pressure your manual recommends, or slightly above for storage if advised, and move the car occasionally if you can. Some owners use axle stands for very long periods.
Avoid applying the handbrake for months, since brake parts can stick, and use wheel chocks instead on level ground. Block the exhaust outlet and air intake with appropriate materials, and keep pest repellents away from wiring in a way that is safe. Check your manual.
Place a few notes in the car and on your calendar so you remember its condition and what you did. Good records make the restart much easier.
Wake the Car Up Carefully
When you return, inspect the car before starting it. Check under it for leaks, look at the tyres and battery, and review the fluid levels. Start the engine and let it idle while you listen for odd noises and check the dashboard.
Test the brakes gently before driving off. A visit to a professional for a quick check is a sensible step after long storage. For more ownership guides, see Ran When Parked.
Replace any fluids or parts your professional recommends, and wash the car again to remove dust and cover marks.
Write down the date you stored the car and the mileage shown on the odometer. This simple note makes it easy to judge how long it has been parked and which checks to prioritise on your return.
Long-Term Storage Checklist
- Storage location chosen: dry, secure and ventilated
- Car washed, waxed and thoroughly dried
- Interior cleaned and free of food
- Fuel and oil handled as advised for your car
- Battery maintained or disconnected as the manual advises
- Tyres inflated to recommended pressure
- Handbrake left off and wheels chocked
- Breathable cover fitted
- Insurance and registration reviewed
- Post-storage inspection planned
Frequently Asked Questions
How long can a car sit before problems begin?
It varies, but problems such as a flat battery or stale fuel can appear within weeks or months. Preparation reduces the risk.
Should I start the car occasionally while it is stored?
Short idling is not always beneficial, because the engine may not reach full temperature. Ask a professional what suits your car.
Do I need insurance for a stored car?
Check with your insurer. Some policies can be adjusted for storage, but you should confirm what protection you still need.
