Yes, you can absolutely keep a car in a storage unit, but proper preparation and understanding facility rules are essential for its safety and your compliance.
Sometimes life throws a curveball, and you need a temporary home for your beloved ride. Maybe you’re moving, deploying, or just need to clear out some garage space. A storage unit can be a solid option, but it’s not as simple as just parking it and walking away.
As a gearhead who has seen it all, I can tell you that a little foresight goes a long way. Let’s dig into what it takes to store your car right, keeping it in top shape for when you’re ready to hit the road again.
Understanding Storage Unit Types and Facility Rules
Not all storage units are created equal, especially when it comes to vehicles. You need to pick the right kind of unit and understand the specific rules of the facility.
Most facilities have policies against storing hazardous materials or anything that could attract pests. This includes fuel, which we’ll talk about soon, but it’s usually managed with proper preparation.
Always read your lease agreement thoroughly. It outlines what you can and cannot do. Some facilities prohibit vehicle storage entirely, while others have specific sections for cars, boats, or RVs.
Access hours and security features also vary. Consider how often you might need to check on your car.
Types of Storage Units for Vehicles
- Drive-Up Units: These are like a garage, easy to access directly from outside. They are convenient for loading and unloading your vehicle.
- Indoor Units: Your car is inside a larger building, often with climate control. These offer better protection from the elements but might have tighter access.
- Climate-Controlled Units: These maintain a consistent temperature and humidity. They are crucial for protecting sensitive electronics, interiors, and preventing rust or mold, especially in regions with extreme weather.
Here’s a quick look at common unit types:
| Type | Best For | Key Feature |
|---|---|---|
| Drive-Up | Easy access, short-term | Outdoor entry, garage-like |
| Indoor | Better security, weather protection | Inside a building, less exposure |
| Climate-Controlled | Long-term, sensitive vehicles | Stable temperature/humidity |
Can You Keep A Car In A Storage Unit? Legality & Logistics
The short answer is usually yes, but there are important legal and logistical considerations. These aren’t just suggestions; they’re vital for avoiding headaches down the line.
Your car needs to be properly titled and registered. Even if it’s not being driven, some states require current registration. Check with your local Department of Motor Vehicles (DMV) for specific requirements.
Insurance is another big one. Your standard auto insurance policy might not cover your vehicle once it’s in a storage unit. Talk to your insurance provider about storage coverage options. Some facilities offer their own basic insurance, but it’s often minimal and won’t cover much if something goes wrong.
Choosing the Right Size Unit
You need enough space to open doors and move around a bit. Don’t cram your car into a unit that’s too small.
A little extra room allows for better air circulation and makes it easier to place protective covers or check on the vehicle.
- 10×15 feet: This might fit a very small car, but it will be tight. You’ll have almost no room to maneuver.
- 10×20 feet: This is a common size for most standard cars, leaving a little room at the front or back.
- 10×25 feet: Ideal for larger vehicles or if you want extra space for tools, a workbench, or other items alongside your car.
Here’s a general guide for unit sizes:
| Unit Size | Fits | Notes |
|---|---|---|
| 10×15 ft | Small car | Very snug fit, minimal access |
| 10×20 ft | Most cars, small trucks | Standard choice, some clearance |
| 10×25 ft | Large cars, SUVs, trucks | Ample room, easier access |
Preparing Your Car for Storage: The Mechanical Checklist
This is where the mechanic in me gets excited. Proper preparation is the difference between pulling out a ready-to-go car and one that needs a full overhaul. Think of it as putting your car into hibernation.
Fluids and Fuel System
- Oil Change: Fresh oil has fewer contaminants and acids that can corrode internal engine components during long periods of inactivity.
- Coolant: Check your coolant level and ensure it’s properly mixed for freeze protection if you’re in a cold climate.
- Brake Fluid: A quick check ensures it’s at the proper level.
- Fuel Tank: Fill the gas tank completely. This minimizes air space, reducing condensation and preventing rust inside the tank.
- Fuel Stabilizer: Add a quality fuel stabilizer according to the product’s instructions. Run the engine for about 10-15 minutes afterward to circulate the stabilizer through the entire fuel system, including the injectors. This prevents fuel from breaking down and gumming up components.
Battery and Electrical System
A dead battery is a common issue with stored cars. Batteries naturally discharge over time.
- Disconnect: Disconnect the negative battery terminal to prevent parasitic drains.
- Remove: For very long-term storage, remove the battery entirely and store it in a cool, dry place.
- Trickle Charger: If power is available in your unit, connect a smart trickle charger or battery maintainer. This keeps the battery topped off without overcharging it.
Tires and Suspension
Sitting in one spot for months can cause flat spots on your tires, which are hard to get rid of.
- Over-inflate: Inflate tires to about 5-10 PSI above the manufacturer’s recommended pressure. This helps them maintain their shape.
- Jack Stands: The best method for long-term storage is to lift the car onto jack stands. This takes all weight off the tires and suspension components.
- Parking Brake: Do not engage the parking brake for long-term storage. It can seize up. Use wheel chocks to secure the vehicle instead.
Interior and Exterior Protection
You want to protect your car from the inside out.
- Clean Thoroughly: Vacuum and wipe down the interior. Remove any food or drinks that could attract pests.
- Desiccants: Place moisture absorbers inside the cabin to prevent mold and mildew, especially in humid climates or non-climate-controlled units.
- Wash and Wax: A clean, waxed exterior protects the paint from dust and minor scratches.
- Car Cover: Use a breathable car cover. Avoid plastic tarps, which can trap moisture and scratch paint. A good cover protects against dust and minor impacts.
Pest Prevention
Mice, rats, and insects love dark, quiet places like your car’s engine bay or interior.
- Block Openings: Stuff steel wool or fine mesh into the exhaust pipe and air intake. Remember to remove these before starting the car!
- Repellents: Place dryer sheets, cotton balls soaked in peppermint oil, or even mothballs (use sparingly and with caution due to strong odor) in the engine bay and interior.
- Check for Gaps: Ensure windows are fully closed.
Long-Term vs. Short-Term Storage Differences
The level of preparation depends heavily on how long your car will be stored. A weekend away is different from a year-long deployment.
Short-Term Storage (Under 3 Months)
For shorter periods, you can get away with less intensive prep, but don’t skip the basics.
- Battery: Disconnect the negative terminal or use a trickle charger.
- Fuel: Fill the tank and add stabilizer.
- Cleanliness: A quick wash and interior tidy-up will suffice.
- Tires: Over-inflate slightly.
The main goal here is to prevent the battery from dying and the fuel from going stale.
Long-Term Storage (Over 3 Months)
This requires the full mechanical checklist. Every step is important to ensure your car remains in prime condition.
- All Mechanical Prep: Oil change, full fuel treatment, battery removal/trickle charge.
- Tire Care: Jack stands are highly recommended to prevent flat spots and preserve suspension components.
- Pest Control: Be diligent with blocking openings and using repellents.
- Climate Control: Seriously consider a climate-controlled unit for long-term storage, especially for classic or high-value vehicles.
- Periodic Checks: Even in long-term storage, try to visit your car every few months. Check tire pressure, battery charge, and look for any signs of pests or leaks.
Maintaining Your Stored Vehicle
Even a car in storage needs a little attention now and then. Think of it as a check-up at the doctor’s office.
If you can, visit your car periodically. This allows you to check on its overall condition and address any potential issues early.
Check the battery’s charge and the tire pressure. Look for any signs of fluid leaks or pest activity. You might even want to open the doors for a bit to air out the interior.
If the facility allows, starting the engine briefly (after removing any exhaust blockages) and moving the car a few feet can help circulate fluids and prevent components from seizing. However, ensure proper ventilation if you do this in an enclosed space.
Choosing the Right Unit: Climate Control and Security
Beyond just fitting your car, the quality of the unit matters. This is about protecting your investment from the elements and from theft.
The Benefits of Climate Control
Climate control is a game-changer for car storage, especially for classic cars, luxury vehicles, or any car stored for an extended period.
- Temperature Regulation: Prevents extreme heat or cold from damaging plastics, rubber seals, and electronic components.
- Humidity Control: Reduces moisture, which is the primary cause of rust, mold, and mildew. This is critical for preserving paint, chrome, and interior fabrics.
- Stable Conditions: A consistent environment is much gentler on all vehicle components than fluctuating temperatures and humidity.
If you’re storing a daily driver for a month or two, a standard unit might be fine. But for anything valuable or long-term, climate control is a wise investment.
Security Features to Look For
Security is non-negotiable. You’re entrusting your vehicle to this facility.
- Gated Access: Entry gates with keypads or access cards restrict who can enter the property.
- Surveillance Cameras: Visible cameras act as a deterrent and provide evidence if an incident occurs.
- Individual Unit Alarms: Some units have alarms that trigger if the door is opened without authorization.
- Good Lighting: Well-lit areas deter criminal activity and make you feel safer during visits.
- On-Site Management: A manager living or working on-site often means quicker responses to issues and a more secure environment.
Always tour the facility before committing. Observe the cleanliness, the condition of the units, and how secure it feels. Trust your gut feeling about the place.
Can You Keep A Car In A Storage Unit? — FAQs
Is car insurance still necessary for a stored vehicle?
Yes, in most cases, it is highly recommended to maintain insurance on a stored vehicle. Your standard auto policy might not cover damages while in storage, so consult your provider about specific storage coverage. This ensures protection against theft, fire, or other unforeseen events not covered by the storage facility’s minimal insurance.
Can I store a car that isn’t running?
Absolutely, you can store a non-running car in a storage unit. However, you’ll need a way to transport it to and from the unit, likely a tow truck or flatbed. Ensure the facility allows non-operational vehicles and that you’ve addressed any potential fluid leaks or other issues that could violate your lease agreement.
What’s the best way to prevent rust in a storage unit?
Preventing rust primarily involves controlling moisture and protecting metal surfaces. A climate-controlled unit is ideal for regulating humidity. Additionally, washing and waxing the car, filling the fuel tank, and potentially using desiccants inside the cabin will significantly reduce the risk of rust formation.
Do storage units provide power for trickle chargers?
Many storage units, especially those designed for vehicle storage, offer electrical outlets for trickle chargers. However, this is not universal. Always confirm with the facility management before renting if you plan to use a trickle charger, as not all units are equipped, or there might be an additional charge for electricity.
What are the biggest risks of storing a car improperly?
Improper storage can lead to several serious issues. These include a dead battery, flat-spotted tires, rusted components (fuel tank, brakes), degraded fluids, pest infestations causing wiring damage, and mold or mildew in the interior. These problems can result in costly repairs and significantly reduce your car’s lifespan and value.

Certification: BSc in Mechanical Engineering
Education: Mechanical engineer
Lives In: 539 W Commerce St, Dallas, TX 75208, USA
Md Amir is an auto mechanic student and writer with over half a decade of experience in the automotive field. He has worked with top automotive brands such as Lexus, Quantum, and also owns two automotive blogs autocarneed.com and taxiwiz.com.