What do you need to prepare for self-driving in Western Sichuan?

Most of the road conditions in western Sichuan (Aba Prefecture and Garze Prefecture) are very good, but some places have higher altitudes. Generally, you need to pay attention to altitude sickness and bring appropriate warm clothes. Even in summer, you should bring some thin clothes. warm clothes. If you are driving in western Sichuan during the cold winter, you may encounter icy and snowy roads, so it is recommended to bring tire chains.