Maintain the whole vehicle before departure, replace the air filter oil and add gear oil antifreeze according to the situation. If the vehicle mileage exceeds 50 thousand kilometers, it is best to replace the timing belt, which is not expensive. If it is broken, it will be in big trouble. Ignore this as a chain. The items you need to bring are tow rope, fire extinguisher, reflective vest, tripod, antifreeze glass water, fuse, pump, military shovel, jack, spare key, spare tire and replacement tools. You can go without a snow chain from July to September, and you'd better take it with you at other times. Never bring a spare oil drum. There are many gas stations on the road, so it is a burden to carry them all the way. The gas station is afraid to add it to you.