1. What do the numbers on my tire mean?

The numbers on your tire indicate its dimensions; specifically, width, aspect ratio (the height of the sidewall from rim to tread) and diameter in inches.

2. How do I find out what size my car's tires should be?

You typically find this information in one or more places: inside the door jamb there's usually a sticker which gives details like tyre pressure specifications as well as correct tyre sizes for both front and rear wheels; owner’s manual or via an online search using your make/model year information.

3. Why does it matter if I know my tire size?

Knowing your tire size allows you to purchase replacement tires that will fit properly onto your vehicle without negatively affecting handling characteristics or safety features such as braking distances.

4. Can I use any type of tire as long as it has the same measurements?

No! The particular type and quality rating/speed rating of tyres determine suitable usage scenarios - For example low profile sport tyres designed for speed would perform poorly under winter commuting conditions simply due to it having less grip over snow/ ice laden roads. Tires also need have other technical features geared toward durability especially if carrying heavy loads.

5.How often should I check my car's tires' condition/size specs?

Experts advise regular checks at least once per month alongside general routine maintenance aimed at good lubrication levels ie checking oil/fluid regularly so early signs of issues can be addressed before turning into costly repairs.