How long is the validity period of a temporary car license plate?
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Methods to detect transmission problems include: 1. Difficulty in shifting gears - when operating the gear lever, it feels laborious to shift gears, unable to smoothly engage into gear or hearing gear grinding sounds, and in severe cases, unable to shift gears; 2. Automatic gear disengagement; 3. Abnormal noises when in neutral or during gear shifting while driving. The functions of the transmission are: 1. To change the transmission ratio; 2. To expand the torque and speed of the driving wheels; 3. To enable the car to reverse; 4. To facilitate gear shifting or power output. Maintenance methods for the transmission include: 1. Regularly checking the oil level; 2. Avoiding skipping gears when upshifting; 3. Not forcing the transmission into neutral; 4. Not shortening the idle warm-up time; 5. Avoiding gear grinding when shifting.