Classics are especially vulnerable to the elements. They often lack the advanced corrosion protection and sealed systems found on modern vehicles. Vintage materials like chrome, leather and rubber will deteriorate quickly if not stored properly, with moisture, temperature fluctuations and pests posing significant threats.
So it's essential to give your classic some extra attention before tucking it away for the winter months. Here’s everything you need to know from our Tinker experts:
Start with a meticulous cleaning. Wash the exterior thoroughly to remove dirt, grime and, depending on where you live, any traces of road salt. Pay special attention to the undercarriage and wheel wells, where corrosive gunk likes to hide. Then, dry the car completely to prevent water spots and mildew.
For added protection, after drying, consider application of additional protectants. Apply a high-quality wax to the paint. This provides a protective barrier against moisture and dust. Don't forget to polish the chrome to prevent tarnishing and pitting. Consider applying a rust inhibitor for added protection in rust-prone areas, such as the undercarriage.
Vacuum the interior to remove any crumbs or debris that might attract pests. Clean all surfaces and apply leather or vinyl conditioner as appropriate to prevent the seats, dash and other surfaces from drying out and cracking. To combat moisture buildup, place desiccant packs or other dehumidifying agents inside the cabin and trunk.
Changing the oil and oil filter before storage might seem unnecessary, but fresh oil prevents contaminants from corroding engine parts while the car sits.
Check and top off all other major fluids, including the brake fluid, transmission fluid and coolant (anti-freeze). Anti-freeze is especially critical since it prevents ice from forming inside the cooling system and causing major damage.
Fill up the gas tank to minimize air space inside where condensation can form. Adding a fuel stabilizer designed for classic cars will also help to prevent the fuel from degrading. After adding the stabilizer, don't forget to run the engine for a few minutes to ensure the stabilizer is distributed throughout the system.
Disconnect and remove the battery to prevent any electrical drains during storage. Store it on a wooden surface in a cool, dry place – not on concrete, which can cause it to discharge more quickly. Then, use a battery maintainer or trickle charger to keep it juiced up through the winter.
Lubricate moving parts like door hinges and hood latches to prevent them from rusting or seizing. Instead of engaging the parking brake, which can cause the brake pads to stick to the rotors (or shoes and brake drums), use wheel chocks to keep the car stationary.
Your tires can develop flat spots if the car sits in one place for too long, especially in cold temperatures. To help prevent this, inflate them to their highest recommended pressure, but don't exceed the maximum pressure listed on the sidewall.
For added protection, you can also place tire cradles under them or relieve some pressure by positioning jack stands under the suspension's weight-bearing components such as the lower control arms or rear axle housing.
Rodents and other invasive pests can cause significant damage over the winter by chewing through wires and burrowing into the seats. To deter them, place mothballs, dryer sheets or pouches of natural repellents such as peppermint oil in and around the car. Ensure all windows and vents are closed to prevent any unwanted guests from getting inside.
Also, seal off the exhaust pipe and air intake with steel wool or covers to block critter access into the engine.
If your car is a classic, treat it that way. Invest in a high-quality, breathable car cover designed specifically for indoor storage of classic cars. This type of cover will protect your vehicle from dust and minor bumps while allowing moisture to escape, preventing corrosion and paint damage.
Avoid using plastic tarps or other non-breathable materials, as they can harm your car's finish, trap moisture and cause corrosion.
Before you hang up the keys for winter, create a checklist of all the steps you've taken to care for your classic over the winter months. Place this list on the dashboard to remind yourself of everything that needs to be reversed before you fire it up in the spring – including the removal of anything you used to seal the exhaust pipe.
When the weather warms up, you’ll be glad you took the time to store your pride and joy properly. You’re not only protecting your classic, but positioning yourself to get it right back on the road at winter’s end.
Still have questions? Speak to one of our Tinker experts today!