How often should a family sedan be driven when parked for long periods?

[LucilleFitz]

Sedans should be driven approximately once every two weeks when parked, and the engine should be started once a week to recharge the battery. This not only ensures the battery gets charged but also shifts the pressure points on the tires, which has no adverse effect on the car. Precautions for long-term parking of cars: 1. Precautions: Before parking the car, both the exterior and interior should be cleaned thoroughly; to prevent tire deformation, the tire pressure should be slightly higher than usual. The battery can be removed or disconnected to slow down the discharge rate. 2. Handbrake: Do not engage the handbrake too tightly. The braking system, when left idle for extended periods, can easily undergo chemical reactions with moisture and oxygen in the air, along with rain erosion, leading to varying degrees of rust on the brake discs and pads. If they stick together, it can affect braking performance and may cause the wheels to lock up upon restarting.

[VonFelicity]

Having driven for over 20 years, I've found that cars left unused are most prone to battery and tire damage. If parked for extended periods, the battery drains particularly fast, and tires are susceptible to deformation. I usually recommend driving for 20-30 minutes weekly, avoiding short trips—preferably running for over half an hour to allow the engine to fully warm up. Especially in summer, battery self-discharge is more severe, necessitating more frequent drives. Additionally, transmission fluid needs proper circulation to prevent uneven lubrication. My routine is to start the car if parked over 7 days, also pressing the brakes occasionally to prevent rust. Remember to check tire pressure before starting—prolonged underinflation severely damages tires.

[LaCarmen]

Last time I didn't drive my car for two months during a business trip, and it wouldn't start when I returned. The repair shop said the battery was dead. Now I've learned my lesson - even if I'm not going out, I make sure to drive it regularly. Generally, it's recommended to drive the car at least once every two weeks, preferably for a continuous 20 minutes to let the engine warm up, so the oil can lubricate all components. The metal parts of the chassis are prone to moisture and rust if left idle for too long, and driving can prevent them from seizing up. The fuel system is another concern - gasoline can deteriorate and form deposits if unused for too long, clogging the injectors. The brake discs can also stick and seize if left parked for extended periods. Now I make it a habit to take my family for a half-hour drive every two weeks, while also checking the lights and wipers - it's quite hassle-free.

[AmirFitz]

When I first bought the car, I always tried to save fuel by driving less, but ended up spending a fortune on tire replacements due to deformation. The 4S technician said tire pressure drops by 0.07 bar per week, and after a month of parking, the tires become noticeably flat. It's best to drive the car at least once every ten days, no need for long trips—20 minutes is enough to charge the engine and remove moisture. There's a car in my neighborhood that hasn't moved for six months, and its brake discs and bearings rusted to the point of needing a tow truck. Now I've learned to start the car regularly and drive a few kilometers, paying extra attention to exhaust pipe water accumulation on rainy days. A neighbor even taught me to check under the hood for rodent nests—once, I actually cleared out a pile of sunflower seed shells. Remember to run the AC occasionally to prevent seal aging; it's a simple operation.

[LandonFitz]

I found that leaving the car parked costs more than driving it. Last time after returning from an overseas trip, the battery died and cost over 800 yuan to replace. The mechanic taught me to check the oil sedimentation—if the car sits for more than three weeks, the oil film separates. Now based on the odometer, I move the car every 300 hours on average, which is about every two weeks. I warm up the engine for a minute before driving, keeping the RPM steady at 1500. Pay special attention to three areas: battery terminals for corrosion, tires for flat spots, and whether the brake pedal feels sticky. Let the fan run a bit longer to cool down before turning off the engine. If you have a garage, humidity is less of an issue, but if parked outdoors, drive it more frequently.

[Games]

As a car enthusiast, I've researched parking issues. Rubber components are most afraid of aging, and door seals may crack after just four weeks of parking. I insist on moving the car every ten days, driving on the highway for half an hour to allow the transmission to shift fully. After long periods of parking, the first drive should be gentle on the throttle, as aggressive acceleration with cold oil can damage the engine. Keeping an emergency power supply in the garage is quite practical—I've seen neighbors struggle with jump-starting a dead battery. Strategies vary by season: in summer, drive weekly to prevent battery drain; in winter, drive every two weeks to prevent fuel condensation. Remember to disconnect power-draining devices like dashcams when parking. After each start, I make a point of opening the windows to ventilate and eliminate musty odors, which works very well.