Before embarking on long journeys, a careful analysis of the general condition of the car will be necessary.
First check the condition and pressure of the tires, remember that they are in contact with the ground and guarantee sealing and therefore they must be in perfect condition.
Also check the engine, and above all the levels of oil, water, brake fluid and while you are at the wiper fluid.
Also check the spare tire, that it is inflated and that you have the reflector vest, the triangle, the jack and the wheel nut wrench.
If you are in the summer, check the air conditioner, if it cools down it will probably need to be recharged.