Checking your tire inflation once a month will help extend the life of your tire, and maximize your fuel economy and handling.
Over inflated tires will decrease your ride comfort, causing you to bounce around on the road. Traction will suffer and your stopping distance extends due to the tire not being firmly planted on the road.
Under inflated tires cause too much of the tire touching the road. This causes the tire to have increased friction and in return overheats the tire. Overheating causes premature wear, tread separation and blow outs.
Properly inflated tires provide better vehicle handling, traction, and fuel economy.