You should consistently inspect your vehicle's tire pressure because all tires will lose pressure gradually, during both warm and cold temperature months. Climate isn't the only element that causes a decrease in pressure either. Elevation shifts, flexing and tire wall impacts will slowly diminish air pressure. The most suitable process for optimal tire care should be to inspect tire pressure every other trip to the gas station. In terms of tread depth, you should examine that each time you change your oil and you ought to rotate your tires every alternate oil change in order to extend the life of your tires. Rotating your tires every 6 to 8 thousand miles will help preserve an even tread wear through the life of the tire.