If you are planning to leave your car unused for weeks or months, a bit of preparation can save you from costly repairs.

Many drivers park their vehicles and forget them, only to return to a dead battery, flat tires, or other preventable issues. Here is a straightforward guide to keeping your car in good shape while it sits idle.

Preparing the Vehicle Interior and Exterior

Start by giving the car a thorough wash and wax to protect the paint from dust, dirt, and moisture. Clean the interior as well, removing any food wrappers or crumbs that could attract pests. Consider using a car cover made of breathable fabric to prevent scratches and UV damage. If you park outdoors, a waterproof cover is essential, but ensure it allows air circulation to avoid trapping moisture and condensation.

Fuel and Fluid Management

Fill the fuel tank to almost full to reduce the risk of condensation forming inside the tank. Add a fuel stabilizer as directed by the product instructions, then run the engine for about ten minutes to circulate the treated fuel.

Changing the engine oil and filter before storage is recommended if the oil is old or due for service, as used oil may contain contaminants that can affect engine components over time. Top off all other fluids, including coolant and brake fluid, to help reduce the risk of corrosion.

Battery Care

A battery will slowly discharge even when the car is off. The best solution is to use a battery maintainer or trickle charger. If one is not available, disconnecting the negative battery cable can help slow the drain, but this may reset electronic settings such as the clock and radio presets.

Tire and Suspension Protection

Inflate the tires to the pressure recommended in the owner’s manual, usually near the higher end of the safe range. This helps reduce the risk of flat spots forming where the tires meet the ground.

If possible and safe, park the car on jack stands to reduce pressure on the tires during long-term storage. If the car remains on the ground, move it slightly every couple of weeks to change the contact point and reduce uneven wear.

Moisture, Pests, and Ventilation

Place moisture absorbers or silica gel packs inside the cabin to reduce humidity. Close all windows and vents securely.

To help prevent pests, block potential entry points and use proper protective mesh or covers for openings such as the exhaust. Natural deterrents may also be placed in containers to avoid contact with interior surfaces.

Starting and Moving the Car

If the car will be stored for more than a few weeks, it is helpful to maintain the battery or occasionally start the vehicle if appropriate.

If starting the car, allow it to reach full operating temperature and keep it running for around 10–15 minutes. If possible, drive it briefly to circulate fluids and help reduce brake surface rust.

Insurance and Paperwork

Check with your insurance provider about coverage during storage, as some plans may offer adjusted rates when the vehicle is not in use.

Ensure registration and inspection documents are up to date before returning the car to regular use. Keep the key in a secure place and consider using a steering wheel lock for added security.

Proper preparation for long-term car storage helps reduce the risk of mechanical issues and unnecessary maintenance costs. Following these steps will help keep your vehicle in good condition and ready for use when needed.