Whether you’ve tucked your classic away for winter or it’s enjoying a well-earned break between shows, storing a car isn’t a “set it and forget it” affair. Even the best-prepared vehicles need a little love while in hibernation.
Here are ten essential checks to help keep your classic car in fine fettle while it’s off the road.
Even in storage, your car’s battery will slowly discharge over time. To avoid the disappointment of a flat battery come spring, consider using a battery conditioner or trickle charger. These devices keep your battery topped up and healthy without overcharging it. If you’ve disconnected the battery entirely, make a habit of checking its charge level once a month.
Tyres can lose pressure over time, especially when a vehicle isn’t being driven. Underinflated tyres can develop flat spots that ruin ride quality. Check and top up your tyre pressures every few weeks. If you’re storing your car long-term, you might also want to consider tyre cushions or cradles to help distribute weight evenly.
Moisture is a classic car’s worst enemy. Even in a well-ventilated garage, condensation can creep in and cause rust, mould, and musty smells. Make sure your storage space is dry and breathable, and regularly check for signs of damp inside the cabin and boot. A reusable dehumidifier can work wonders if things are feeling a bit clammy.
It’s always worth taking a peek under your car for any fresh oil or coolant drips. Gaskets can shrink in cold weather or from lack of use, and minor leaks left unattended can lead to bigger problems down the line. Keep an eye on fluid levels too - just because it’s not being driven doesn’t mean your car isn’t losing fluids.
If you’re using a car cover, make sure it’s the right kind. Breathable, fitted covers are best, especially indoors. Plastic tarps or non-breathable fabrics can trap moisture and cause paint damage. And before you put the cover on, double-check the car is clean and dry - dust or dampness under the cover can do more harm than good.
Some owners like to run their engine every few weeks. If you do, let it fully warm up to operating temperature and give it a gentle run through the gears (even if stationary), to circulate fluids properly. Just idling the engine for a few minutes can cause condensation in the exhaust and doesn’t do much for the battery either.
Brake discs can gather surface rust quickly, especially in damp conditions. While this often rubs off with use, in storage it can lead to seized calipers or sticking pads. If your car is safe and secure to roll, try gently rocking it to make sure the brakes haven’t bound. Otherwise, keep the handbrake off and use wheel chocks instead.
Petrol doesn’t last forever. Modern fuels with ethanol can degrade in as little as 30 days, leading to gummed-up carburettors and corroded fuel lines. Use a fuel stabiliser additive if your car is off the road for more than a month. And consider keeping the tank full to minimise condensation.
Rubber components like belts, hoses and seals can dry out and crack over time, especially if the car isn’t being run. Every month or two, lift the bonnet and inspect for signs of wear or stiffness. Catching these early can save a breakdown later on.
A stored classic still deserves attention. Pop in for a visit now and then - check for smells, leaks, pests, or anything that feels off. Use the opportunity to open windows (if weather permits), roll it a bit, or just admire your handiwork. Your car will thank you when the driving season rolls around.
