It is generally recommended to change the tires on your car every six years, regardless of how much you drive. However, there are a few other factors to consider when deciding when to change your tires. For example, if you notice that the tread on your tires is wearing unevenly or if you frequently drive on rough roads, you may need to change your tires more often. Additionally, if you drive a high-performance vehicle or a vehicle that carries heavy loads, you may need to change your tires more often as well. Ultimately, it's important to regularly inspect your tires and consult your owner's manual or a tire professional to determine the best time to change your tires.