To maintain the proper air pressure in your tires takes very little effort. By doing that simple chore, you can save 4% on your annual gas costs. It is estimated that a 4% savings equates to between $100 and $200 per year. Just follow the advice listed here and start saving.

The correct tire pressure is different from car to car and from tire to tire. The correct or manufacturer recommended pressure for the tires on personal vehicles can be from 20 psi to over 50 psi.

The correct tire pressure for your vehicle is listed on the information placard. This placard is normally located on the edge of one of the doors, the inside post of one of vehicle's doors or inside the glove compartment, trunk, or fuel door. Your owner's manual should include the correct tire pressure or direct you to the placard's location on your vehicle.

Many drivers have the mistaken idea that the numbers on the tire sidewall indicate the correct pressure. This couldn't be farther from the truth. The information on air pressure listed on the tire is the maximum tire pressure that can safely be used in that grade tire. It also indicates the highest pressure that should be used in order to load the maximum weight in the vehicle.

Once you know the correct tire pressure, you need to measure the tire pressure on all tires to ensure they are inflated correctly. The correct way to determine tire pressure:

How to measure and correct tire pressure:

Step 1:

Make sure you have a tire pressure gauge. There are many kinds. You do not need an expensive one. A gauge with a dial is easier to read than the pop up kind.

Step 2:

Check the tire air pressure informational sticker or the car operating manual to determine the manufacturer suggested pressure for your tires. Once you have that information you can proceed with the actual measurement.

Step 3:

A tire that is hot, or has just been driven on will have a higher air pressure than that same tire when it is cold. A cold tire is one that has not been driven for at least 3 hours or has been driven 1 mile or less. Air pressure should only be measured when tires are cold. If you measure warm tires your results will be faulty.

Step 4:

Remove the top or cap from the valve on the tire and insert the gauge onto the valve. Make sure you press the gauge snugly on the valve. You should not hear air coming from the tire if you have the pressure gauge properly affixed onto the valve. If you hear air escaping pull the gauge off of the valve and reseat it. Once it is seated properly you can note the reading on the gauge.

Step 5:

Add air to achieve recommended air pressure. If you overfill the tire, release air by pushing on the metal stem in the center of the valve, then re-measure the pressure.

Step 6:

Follow this same procedure for the other three tires.

Check your tire pressure at least once per month is the standard recommendation you should follow. A tire's pressure will change as air will leach from a tire over time. Use and heat can help to accelerate the rate that air is lost. If you check once per month you can be certain that your tires will remain at the correct pressure all year.

Check your tires. Follow the steps above. There is no easier way to put $100 to $200 dollars of gas costs back into your pocket.