As with any fire truck, the frequency of waxing will depend on a few factors. The first is how often the truck is used. If it's a busy truck that's constantly being called out to fires, then it will need to be waxed more often than one that's only used for training or special occasions. The second factor is the climate. A fire truck in a hot, dry climate will need to be waxed more often than one in a cooler, wetter climate. And finally, it depends on the type of wax being used. Some types of waxes last longer than others