Tire pressure gauge
The tire gauge accuracy is measured by a tire pressure gauge. Most of you may have used one or at least seen one when you did the gas station when you when to put fuel in your car. There are two types of tire pressure gauges in the marketplace today and they are analog and digital. The analog gauge is the one which we all have seen a lot, it the round face analog tire pressure gauges. The fuel station analog gauges where once the industry standard.
However, thing have changed. And, these analog gauges are not considered to read out the correct tire pressure. These tire pressure gauges are almost worthless when it comes to properly measuring air pressure inside your tires.
However, just having a digital tire pressure gauge doe not assure you a correct reading. Depending upon the time of the day you conduct your tire pressure reading you can have completely different results. You may then want to question why does this take place?
We all tend to forget what is the best time is in a day to check the pressure in your vehicles tires and why? The answer is very simple; check your tire pressure only at a time when your tires are cool before they get warmed up. This would give you the optimum tire gauge accuracy. So now the next question why does this scenario take place? Well, the correct answer is; the tire pressure your vehicle manufacture recommends is the "cold" air pressure. When you drive your vehicle or pull a trailer the air inside the tires gets hot and when air gets hot it expands thus increasing the tires air pressure.
The above discussion has explained why and when you can achieve the maximum tire gauge accuracy. Now, the next step! Well, to gauge the tire gauge accuracy you would need more then just time of the day, you need good equipment. Not that the analog gauges can have default of as much as 15 psi, where as if you use a digital tire pressure gauge you reading would have only a reading which is a plus or minus of .05 psi. As you know digital is replace analog everywhere you look from electronic to TV reception, well tire pressure gauges are no exception.
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