
A dead file car refers to a vehicle that has no operational issues but cannot be transferred to another owner. It retains its license plate until the car is completely worn out and can still undergo normal inspections. Specific details: These cars are typically smuggled vehicles purchased in the past, which were then registered with the help of signatures from DMV officials, making all procedures appear normal. Minor trade procedures: These vehicles are usually confiscated smuggled cars by the General Administration of Customs, then legally sold through proper channels, such as auctions. The customs can issue a "confiscation certificate" for these vehicles to be registered, but they can only be transferred locally. Most imported cars during those years fell into this category, and currently, such cars are priced lower than those with major trade procedures.

I've driven manual transmission cars for over 20 years and encountered dead-gear situations several times, usually when climbing hills or hauling heavy loads. The issue occurs when the gear is set too high, preventing the engine RPM from rising, making the car feel sluggish, as if pressing the accelerator has no effect. This is mainly because the highest gear in transmission design is optimized for fuel efficiency on flat roads, making it inadequate when more power is needed. Driving like this frequently can lead to carbon buildup in the engine, reduced fuel efficiency, and potential damage to the clutch and drivetrain. My advice is to downshift in advance when driving on mountain roads or uphill—for manual transmissions, drop to third or fourth gear; for automatics, switch to sport mode or use paddle shifters to downshift, avoiding high gears at low speeds. Regular maintenance, such as periodic carbon cleaning and checking transmission fluid condition, can help reduce the frequency of these occurrences.

As a daily commuter, I once experienced a sudden loss of power while driving, which turned out to be a 'dead gear' issue. Simply put, the transmission was stuck in the highest gear, but when I tried to accelerate, the car wouldn't pick up speed, as if the pedal had no effect. When driving an automatic, this often happens because I habitually leave it in D (Drive) for all road conditions, especially when going uphill or crossing intersections, affecting the acceleration response. The solution is to promptly press the accelerator to downshift or manually intervene, such as using the gearbox's manual shift function. Additionally, this issue is also related to load—last time, I got caught out when climbing a hill with a full load, so I remind everyone not to overload their vehicles. To avoid such situations, I've developed the habit of frequently checking the dashboard in low-speed areas; early detection can prevent safety issues.

A "dead gear" car refers to a condition where the engine's output power is insufficient to accelerate the vehicle when operating in the highest gear. Having studied automotive engineering, I know this is common in both manual and automatic transmissions, caused by weak engine torque at low RPMs, incorrect high gear selection by the operator, or excessive vehicle load. When this occurs, you'll feel the car struggling with engine roar but no speed increase, wasting fuel and increasing wear. The solution is simple: downshift to raise RPM. For automatics, switch to manual mode or kick down by flooring the accelerator; for manuals, directly shift to lower gears like 4th or 3rd. Prolonged dead gear operation leads to carbon buildup - regular engine maintenance is advised, such as checking air filters and fuel injectors every 5,000 km.


