Protecting one of your biggest investments sitting in your garage?
We all know that vehicles depreciate the second they leave the dealership lot. But here’s something else that not many people realize…
Improper storage can wreck your value even faster.
It’s not just classics or vehicles you only drive seasonally — any car that’s not being driven regularly needs to be stored properly.
While modern cars are more reliable than ever, repair costs have increased 25% since 2022 alone.
The good news?
The right storage techniques can prevent that damage.
Let’s dive in!
Here’s what you need to know:
- Why Proper Car Storage Matters
- Biggest Threats To Stored Vehicles
- Best Practices for Keeping Your Car Stored Safely
Why Proper Car Storage Matters
Parking a vehicle for an extended period is different from everyday parking.
The average age of vehicles in the U.S. reached a record 12.6 years in 2024, up from 11.5 years in 2016. As more people hang on to their vehicles for years, proper storage becomes even more critical.
Cars and trucks are not built to sit idle for weeks or months. Fluids stagnate, batteries drain, and parts start to degrade. Some types of damage happen quickly — while other problems creep up over time.
A car in storage is vulnerable to problems from both inside and outside. Internal systems and fluids break down. External factors like weather, temperature swings, and pests create damage too.
The end result is costly repairs and headaches when it’s finally time to take the car out for a spin.
Biggest Threats To Stored Vehicles
Before we jump into best practices, it’s important to first understand the biggest causes of damage.
Battery Drain
A dead battery is the number one issue with stored vehicles. Today’s cars have lots of electronic features that require power. Even when the car is off, it still slowly drains the battery. After a few weeks of sitting, you’ll come back to a completely dead battery.
Starting an engine with a dead battery can cause damage to the electrical system. And replacing the battery is an extra and unwanted expense.
Flat Spots On Tires
Have you ever heard of tire flat spots?
After sitting in one place for too long, the weight of the vehicle causes the tires to create uneven surfaces called flat spots. These can lead to vibrations and other issues when driving.
Flat spots can develop as quickly as one month under the right conditions. That’s why even short-term car storage requires precautions.
Fluid Degradation
Something else people don’t think about… All the fluids in a vehicle degrade over time. Engine oil, coolant, brake fluid, and even gasoline eventually go bad.
Gasoline becomes unusable in as little as three to six months. Old fluids can lead to engine and other issues when a car is finally started after storage.
Rust And Corrosion
Moisture is the enemy of a vehicle. When a car sits in a damp environment, rust begins to form on metal parts. Rust can attack the frame, brake components, exhaust system, and more.
Once rust begins, it’s nearly impossible to stop it.
Pest Damage
Rodents and insects love to get inside stored vehicles. These pests chew through wiring, nest in air filters, and leave droppings all over. The repair costs can be extensive.
Best Practices for Keeping Your Car Stored Safely
Now to the good stuff… How to actually store a car the right way.
Choose The Right Storage Location
Storage location matters more than many people realize. The best place to store a vehicle is indoors where it’s dry, cool, and well-ventilated.
Garages and other covered areas protect the vehicle from weather damage and help keep moisture levels lower.
For enthusiasts, vintage or high-end cars and trucks, car storage with AC and electricity is ideal. Climate control maintains stable temperatures and low humidity, warding off rust, fluid degradation, and other common storage issues.
Climate controlled storage is not everyone’s reality, though. When forced to use a standard garage, make sure the area is clean. Check for signs of rodents, and set traps as needed. Cover or seal windows to minimize direct sunlight exposure.
Prepare The Vehicle Properly
Preparation is key to proper storage. Before putting any vehicle in storage, take these essential steps:
Clean the car inside and out. Dirt and grime can bake onto paint if left on for long periods of time. Wash and wax the exterior of the vehicle. Waxing adds a protective barrier. Clean the interior too — remove any food, drinks, or anything that can melt or spoil.
Fill the gas tank. Completely fill the gas tank before storage. This helps prevent moisture buildup and corrosion in the fuel system. Add a fuel stabilizer to prevent the gasoline from going bad.
Change the oil. Old motor oil contains contaminants that can damage an engine while in storage. Fresh oil protects the internal components.
Top off all fluids. Check the coolant, brake fluid, and windshield washer fluid. Make sure all fluids are at the proper level.
Protect The Battery
The battery requires special attention.
Disconnect the battery completely to prevent drain. A better option is to use a battery tender (also called a trickle charger) to maintain the battery while in storage.
Battery tenders cost about $20-30, a small price to pay to avoid the hassle of jump-starting or replacing a battery later.
Take Care Of The Tires
Flat spots can be a huge headache. There are several strategies to prevent them:
Inflate tires to proper pressure, or a little higher by a few PSI. This keeps the tires structurally sound even when temperatures vary.
Use jack stands to raise the vehicle off the ground and take all pressure off the tires. This is great for long-term storage but takes more work.
Move the car occasionally. This is ideal if possible. Simply drive the car forward or back a few feet every two weeks to prevent long-term pressure on one spot of the tire.
Buy tire cushions. Tire cushions are also called tire savers. They distribute the weight of the vehicle more evenly on the tire, and are one of the most effective methods.
Cover The Vehicle
Use a breathable car cover. The cover protects the vehicle from dust and debris. Just make sure the cover is breathable. Non-breathable car covers can trap moisture, which leads to rust and other problems.
NEVER use a plastic tarp. Plastic tarps are a major cause of moisture buildup that leads to rust.
Check On It Regularly
Even with the best preparations, stored cars still need some periodic care.
Inspect the vehicle every few weeks and address any potential problems early.
Check for any signs of pests, tire pressure, and make sure the battery is still charged.
Occasionally start the engine to circulate fluids and keep internal components lubricated.
Common Storage Mistakes To Avoid
Even veterans make these mistakes:
Parking brake engaged. It’s tempting to use the parking brake when a vehicle is in storage, but it’s a big mistake. It can fuse the brake pads to the rotor and cause more problems than it’s worth. Instead, use wheel chocks or just leave the car in gear (manual transmission).
Skipping pest prevention. Hoping the rodents won’t find the vehicle is not a plan. Always take steps to prevent pests.
Skipping fluid changes. Fluids break down over time. Always replace the old fluids before storage.
Neglecting the interior. Any food, drinks, or trash left inside can melt, spoil, and create bad odors in extreme temps.
Wrapping Things Up
Storing a vehicle properly isn’t complicated… It just takes some attention to detail.
By following the tips above, any car or truck can be stored for weeks, months, or even years without damage.
Preparation is everything. Wash the car, change fluids, protect the battery, and store in the right location. Then check on the vehicle regularly.
Climate-controlled storage with electricity is the ideal solution for the most protection. A little extra cost prevents future repair expenses.
Don’t let damage already occur. Follow these tested storage practices and protect that big investment in your garage.
