Tire Pressure Gauge Reviews and Buying Guide
Tire Pressure Gauge Reviews
Tire pressure is something that has recently come into the spotlight again as gas prices continue to rise and consumers are more aware of ways in which they can stretch their gas mileage on a gallon of gas. Tire pressure ultimately decides things like handling, tire tread wear, and gas mileage for your automobile. The first thing you need to know is what tire pressure your car tires should be at. In surveys, the vast majority of car owners have no idea what their tires pressure should be set to. Many just let the guys at the oil change shop inflate the tires when needed and others never even consider checking. Almost all gas stations have inflators so you can add air and many of these also have a simplistic gauge for tire pressure. Ideally you want to know the exact PSI (pounds per square inch) for each tire so it’s a good idea to invest in a decent tire pressure gauge of your own. From reports that we read from reputable sources, keeping your tires properly inflated can improve gas mileage from 3 to 5 %. The longevity of the tire will also be increased by maintaining the tire pressure on your tires.
To find the rated tire pressure for your car and tires, check on the inside of the driver’s side door (along the doorframe). If it’s not listed there, check the owners manual and lastly if you still can’t locate the information, check with the store or shop where you bought the tires. Experts recommend checking the tire pressure every month to make sure your tires are staying properly inflated. The one # many people say is misleading are the ones you find on the side of the tires. These PSI recommendations from the manufacturer are for the maximum allowable tire pressure, so always go a few pounds underneath that #, especially in the summer when tires heat up and expand. The # you find usually relates to “cold” tire pressure which means check the pressure in the morning before you drive the car. You will get the most accurate reading this way. There are lots of different kinds of tire pressure gauges you can buy. The old fashioned sliding gauge that resembles a pen is still sold, but they are less accurate than other types. The digital tire pressure gauges are the most accurate and the most expensive, but your cost savings on gas will easily make up for the purchase. The dial type pressure gauges are around $15 to $25 and work reasonably easy. The newer digital tire pressure gauges from Accutire are the best on the market and give you exact and accurate readings every time. They cost about $15, are lightweight, and some are even programmable so you can input your tire pressure specifications and not have to remember each time you check your tires. Some newer cars are being built with tire pressure monitor systems which tell the driver when tire pressure has dropped below a certain level. You can buy these systems for around $250 if you want. A much cheaper way to go is the Tire Safety Monitors sold HERE. They cost $20 (for a set of 4) and they attach to your tires where your valve stem caps used to be. They start off green and when the tires have lost 2-3 psi (or more), you will see a red flag pop out. It’s a great way to monitor your car tire pressure at a glance. No matter how you decide to check your air pressure in your tires, make sure you do it once a month and keep healthy tires on the road for the safest driving conditions. Beyond getting better gas mileage, your car will handle better and you will have less chance of things like a tire “blowout”. Ultimately, your tires will wear more even and last much longer. I used to never check my tire air pressure and it cost me $100’s as I had to replace all 4 tires due to uneven tire wear (somewhat related to balanced tires and alignment issues). We tried looking for reviews on tire pressure gauges and found some excellent customer feedback and opinions on Amazon.com and in car forums. RECOMMENDED – We suggest shopping online at Amazon.com since they carry all the leading brands and often have the lowest prices.
Best Basic Tire Pressure Gauge:
For a basic tire gauge with the dial readout, consider the Accu-gage Tire Guage for around $15. Reviews on Amazon were favorable in terms of accuracy and preciseness. Not all tire valves are eacy to access, but with the “swiveling, angled chuck”, it’s no problem. If the tires are slightly over inflated, simply use the push button valve which will slowly let out air to your desired psi. The #’s on the gauge are quite large and easy to read. They sell a slightly different version for bikes and cars (0 to 100 psi) on the same website listed above. The pencil style pressure gauges, like the Draper Tire Pressure Gauge are about $20 as well and sell in most automotive parts stores. Most car owners prefer the dial gauges or the digital ones we have listed below. BEST – The #1 selling Moroso 89560 Tire Pressure Gauge, Dial Type, 0-60 psi – designed for racers but still very accurate for those at home or in the shop. Owners say it is easy to read and very durable.
With technology has come the new digital tire pressure gauge which reads your tire air pressure accurately and quickly. The Accutire MS-4350B Programmable Digital Tire Gauge ($13) is perhaps the most popular of all. This programmable pressure gauge lets you record the factory recommended tire pressure for both the front and rear tires so you can easily determine if your psi reading is too high or too low. The MS-4350B reads 5-99 PSI in .5 pound units. The backlit LCD screen allows you to see the actual reading in all light conditions. The comments on Amazon are almost all very positive but some owners make note that some valve stems are hard to reach with this product. Some of the basic dial pressure gauges will work on wheels where the stem is harder to access. The Accutire MS-4000 gets reasonable reviews as well as the MS-4652B which is a key chaing digital tire gauge.
Pressure around
Air pressure (atmospheric pressure) in any unit area on the surface of the air pressure generated by molecular motion. Is usually measured by a high degree of cross-sectional area of units at and above the weight of the vertical atmospheric column
(1) the definition of gas pressure
Role in vessel wall of gas pressure on the unit area is the gas pressure.
p=F/S p = F / S
(2) gas pressure causes
From the molecular kinetic theory we can see that the gas pressure is frequently a large number of molecular collisions arising from the container wall. A single molecule of the vessel wall collision time is very short role is not continuous, but a large number of molecular collision frequency wall, right wall of the force is a continuous, uniform, this pressure and the ratio of wall area is the pressure of the size of .
(3) The unit of pressure
International System unit: Pascal, abbreviated Pa symbol Pa.
Common unit: standard atmosphere.
1atm=1.013×10^5Pa=760mmHg 1atm = 1.013 × 10 ^ 5Pa = 760mmHg
(4) The method of calculating pressure
Equilibrium conditions are usually law and Newton’s laws of motion method (the formula is only a rough calculation, and sometimes the values measured are not allowed, all should be based on the actual date).
The size of air pressure and altitude, air temperature, atmospheric density, is generally higher with a high degree of exponential decline. Pressure with diurnal and annual variation. One year, the high pressure in winter than in summer. One day, the pressure has a maximum value, a minimum value, respectively, in 9 to 10 am and 15 ~ 16 o’clock, there is a second high-value and a second low-value, respectively, in 21 to 22 am and 3 ~ 4 pm . Diurnal variation of atmospheric pressure to a lesser extent, generally 0.1 to 0.4 kPa, and decreases with higher latitude. Pressure changes and wind, the weather is good or bad and so close, so it is important to meteorological factors. Commonly used pressure units Pa (Pa), mm Hg higher (mm · Hg), millibar (mb). The conversion relationship between them as follows: 100 Pa = 1 mbar ≈ 3 / 4 mm Hg higher. Commonly used in meteorological observation instrument measuring atmospheric pressure with mercury barometer, air box barometer, barometer. 101.325 kPa pressure (760 milli-Migon column), known as the standard atmospheric pressure, which is equivalent to the acceleration of gravity is 9.80665 meters / sec 2, the temperature is at 0 ℃ 760 millimeters of mercury column vertical high pressure, standard atmospheric pressure, first from Italy Scientists measured Tory split profits.
Related words:
Barometer: Measuring air pressure equipment, the most common are mercury barometer and the two kinds of empty boxes barometer. Several instruments are more accurate …