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Winter can be hard on cars, especially classic cars, performance cars, sports cars and vehicles that spend long periods off the road.
Cold weather, damp conditions, road salt, condensation and a lack of use can all cause problems. Preparing your car properly before winter storage can help prevent costly repairs and make sure it is ready to drive when spring arrives.
Whether you are storing a classic car, weekend car, supercar or everyday vehicle, this guide explains how to prepare your car for winter storage and what to look for when choosing a secure vehicle storage facility.
Here are our recommendations from Weaver Car Storage.
- Give Your Car a Thorough Clean
Never put a dirty car into long term storage.
Wash the bodywork thoroughly, paying close attention to the wheel arches, underside, sills and any areas where dirt, mud and road salt can collect. Salt and road grime can hold moisture against the metalwork, increasing the risk of corrosion while the vehicle is stored.
Clean the wheels and tyres as well, and remove any dirt from around the brakes and suspension components where possible.
Make sure the vehicle is completely dry before storing it. Any moisture left behind can contribute to corrosion, mould and other problems over time.
It is also worth applying a good coat of wax or paint protection before the car goes away. This provides an additional layer of protection against dust, moisture and contaminants.
If the interior has been cleaned, allow it to dry fully before covering or storing the vehicle. Check that carpets, mats and upholstery are not damp.
- Prepare the Fuel System
If you are storing a petrol car, particularly a classic car or older performance vehicle, consider the fuel left in the tank.
For older vehicles, we generally recommend E5 Super Unleaded where it is suitable. E5 contains less ethanol than E10, which can be kinder to older fuel systems, seals, hoses and carburettors during longer periods of storage.
It is also best not to store the car with an almost empty tank, as this leaves more room for condensation to form inside the fuel tank. A fuller tank can help reduce the amount of air and moisture present.
For vehicles being stored for an extended period, a suitable fuel stabiliser may also be worth considering. Always check that the product is compatible with your vehicle and follow the manufacturer’s instructions.
- Look After the Battery
A flat or damaged battery is one of the most common problems after a car has been left unused.
A good quality battery conditioner or smart trickle charger can help maintain the battery while the car is stored. We use CTEK chargers as part of our own vehicle storage process.
A battery conditioner is generally preferable to leaving a basic charger connected indefinitely, as smart chargers are designed to monitor the battery and adjust the charging cycle.
If there is no access to electricity, disconnecting the battery may be an option, depending on the vehicle. Bear in mind that disconnecting the battery can affect alarms, trackers, immobilisers and other electronic settings.
Modern cars can also draw power even when parked, so it is worth checking the battery condition before storage.
- Check and Protect the Tyres
Check the tyre pressures before putting the car into storage and inflate them to the recommended level.
A car left in the same position for several months can develop flat spots, particularly if it is stored with low tyre pressures.
For longer storage periods, moving the vehicle occasionally can help distribute the load across the tyres.
Before driving the car again, inspect the tyres carefully for cracks, perishing, bulges, damage, loss of pressure and flat spots.
Do not rely solely on the tread depth. Tyres can deteriorate with age even when they appear to have plenty of tread remaining.
- Check the Engine Oil and Other Fluids
Before storing the car, check the condition and levels of all important fluids.
This includes engine oil, coolant and antifreeze, brake fluid, screenwash, power steering fluid where applicable and automatic transmission fluid where applicable.
If the engine oil is due for a change, it is often sensible to replace it before storage.
Coolant protection is especially important during winter. Do not assume the antifreeze concentration is correct simply because the coolant reservoir is full.
The coolant should be tested to make sure it provides adequate protection against freezing.
Use a screenwash product with suitable winter protection rather than plain water, which can freeze and potentially damage components.
- Do Not Forget the Handbrake
Leaving the handbrake on for a long period can cause it to stick or seize, particularly in damp conditions.
Depending on the vehicle and how securely it is stored, it may be better to leave the handbrake released and use suitable wheel chocks instead.
This is not appropriate in every situation, so always consider the vehicle manufacturer’s recommendations.
If the car has an electronic parking brake, check the manufacturer’s guidance before leaving it unused for an extended period.
- Choose the Right Storage Environment
Where you store the car can make a significant difference to its condition.
Ideally, a vehicle should be kept somewhere secure, dry and protected from the worst of the British winter. However, heat is not always the answer.
Excessive or inconsistent heat can dry out leather, rubber and plastics, while changes in temperature can contribute to condensation.
A stable, well ventilated environment with controlled humidity is often more important than simply keeping the vehicle warm.
When comparing car storage facilities, consider the security, CCTV, alarms, access control, fire protection, ventilation, humidity management, battery maintenance, vehicle inspection procedures and the experience of the people looking after the cars.
A good quality breathable indoor car cover can provide extra protection from dust and accidental contact. Avoid cheap plastic or non breathable covers as these can trap moisture against the vehicle.
- Protect the Interior
The interior also needs attention before the car is stored.
Remove food, rubbish and any items that could attract pests or create unpleasant odours.
Clean the carpets, mats, dashboard and upholstery, then allow everything to dry completely.
Do not leave damp clothing, wet mats or other sources of moisture inside the vehicle.
For leather interiors, use a suitable leather cleaner and conditioner where recommended.
- Check for Leaks and Pests
Before storing the vehicle, look underneath it for signs of oil, coolant, brake fluid or fuel leaks.
Existing leaks can worsen while a car is standing, and fluid loss may cause damage or create a safety issue when the vehicle is driven again.
It is also worth checking for signs of rodents or other pests. Cars that are left unused can sometimes attract animals looking for warmth or shelter.
Keep the storage area clean and avoid leaving food or other attractants inside the vehicle.
- Do Not Just Forget About It
A stored car still needs regular attention.
Battery condition, tyre pressures, fluid leaks and the general condition of the vehicle should be checked periodically.
Parking a car in October and leaving it untouched until spring is not always the best approach.
A proper storage plan should include periodic inspections and a clear process for preparing the vehicle before it returns to the road.
Should You Store Your Car at Home or Use a Professional Storage Facility?
Storing a car at home can be suitable if you have a secure, dry and well ventilated garage. However, many homes do not provide the level of security, space or environmental protection needed for long term vehicle storage.
A professional car storage facility can provide secure indoor or outdoor vehicle storage, battery conditioning, regular vehicle checks, controlled access, CCTV and alarm protection, collection and delivery services and specialist care for classic, performance and luxury cars.
The right option depends on the vehicle, how long it will be stored and the facilities you have available at home.
Want Us to Look After Your Car Instead?
At Weaver Car Storage, we look after vehicles throughout the winter and beyond.
Our secure Liverpool vehicle storage facility offers indoor and outdoor car storage, along with additional care options while your vehicle is with us.
Whether you have a cherished classic car, a weekend car, a supercar or simply a vehicle you would rather not leave outside through another British winter, we can look after it until you are ready to drive it again.
Our storage process can include battery maintenance using CTEK chargers, regular checks and practical support to help keep your vehicle in good condition while it is off the road.
If bringing the vehicle to us is inconvenient, we can arrange collection using open or enclosed vehicle transport and deliver it back to your door when you are ready.
Get in touch with Weaver Car Storage to discuss secure winter car storage in Liverpool and the surrounding areas.
Frequently Asked Questions About Winter Car Storage
How long can I store my car for?
A car can be stored for a few weeks, several months or longer, provided it is prepared correctly and checked regularly. The longer the storage period, the more important battery maintenance, tyre care, fluid checks and environmental protection become.
Should I disconnect the car battery during winter storage?
Disconnecting the battery may be suitable for some vehicles, but it can affect alarms, trackers, immobilisers and electronic settings. A smart battery conditioner is often a better option where electricity is available.
Should I fill the fuel tank before storing my car?
For many petrol vehicles, storing the car with a reasonably full tank can help reduce condensation. Older cars may also benefit from using E5 fuel where suitable. Always follow the vehicle manufacturer’s recommendations.
Is indoor car storage better than outdoor storage?
Indoor car storage generally provides better protection from rain, frost, road salt and wind. However, the quality of the storage environment matters. Good ventilation and humidity management are important, not just warmth.
Should I leave the handbrake on when storing a car?
Leaving the handbrake applied for a long period can cause it to stick or seize. Depending on the vehicle and storage conditions, wheel chocks may be preferable. Always follow the manufacturer’s guidance and ensure the vehicle is securely stored.
How often should a stored car be checked?
A stored vehicle should be checked periodically, particularly during long term storage. Battery condition, tyre pressures, fluid leaks, signs of damp and general security should all be monitored.
Can Weaver Car Storage collect my car?
Yes. Weaver Car Storage can arrange open or enclosed vehicle transport to collect your car and deliver it to our secure storage facility. We can also arrange delivery back to your door when you are ready to use the vehicle again.
Get in touch with Weaver Car Storage to discuss winter storage for your vehicle.