And, you can't tell if they're properly inflated just by looking at them.

Learn how to check the pressure in your tires and keep them properly inflated.

Make sure your tires are properly inflated, because over inflation can lead to problems.

Make sure your tires are properly inflated - under inflation can lead to poor performance.

The easiest way to use your tires to save money is to make sure they're properly inflated.

One of its air chambers failed to inflate properly on Wednesday night.

So he makes sure his has properly inflated tires.

I am already pumping air into them four times a day to keep them properly inflated.

But even conscientious drivers may find it hard to keep a tire properly inflated.

A brand new tire, properly inflated, will lose air even with no punctures present.