Is it okay to leave a car unused for 15 days?

2 Answers
PhoebeAnn
09/08/25 4:14am
Whether leaving a car unused for 15 days will cause problems depends on the condition of the vehicle. If the car is in poor condition, leaving it unused for 15 days may lead to a dead battery, making it impossible to start. Parking location considerations for 15 days of inactivity: It is best to store the car in a garage. If parking outdoors, if possible, cover the car with a car cover. Otherwise, at least park the car in a shaded or sheltered area to avoid damage from sun, rain, and debris like fallen leaves to the car's paint. Try to disconnect the battery: Even when not in use, the battery can discharge on its own. Typically, a battery can fully discharge within 3 months. Therefore, it is advisable to disconnect the battery if the car will be unused for an extended period, as the car's electrical components will still consume power.
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Isla
09/20/25 2:58am
Leaving a car parked for 15 days without driving is generally not a big issue, but as an experienced car enthusiast, I've learned some lessons the hard way that I'd like to share. The battery is the biggest concern, especially in older cars or those with many electronic devices, as self-discharge can drain the battery completely, making it impossible to start. Tires are also crucial; staying in the same position for too long can cause deformation or air leakage, affecting driving balance and safety. Engine oil can settle, leading to uneven lubrication and accelerated wear upon startup, while ethanol in the fuel system may absorb moisture and corrode parts. Before parking, it's advisable to check and adjust tire pressure to the standard value plus 5%, start the engine every 10 days for 20 minutes to charge the battery and circulate the oil, or disconnect the battery's negative terminal. In areas with significant weather changes, be mindful that high temperatures accelerate battery aging, while low temperatures can cause freezing and cracking. In short, take preventive measures as soon as you park to avoid emergencies like brake failure when you're in a hurry to leave.
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