Typical inflation pressures range from 28 to 36 psi (pounds per square inch). This information is usually located on a placard or sticker in the driver's-side doorjamb, inside the glove compartment or fuel-filler door. Find out what the recommended pressure setting is for your car. Don't trust the gauge on a gas station's air pump to be accurate.Ģ. Use a good, well-maintained tire-pressure gauge. Don't go by "max pressure" figure found on the tire sidewall.Ĭhecking your car's tire pressure takes only a few minutes. This information may also be in your owner's manual. When checking and adding air to your tires, go by the automaker's recommended pressure setting, which is usually located on a placard or sticker in the driver's-side doorjamb or inside the glove compartment or fuel-filler door. An unmounted tire inflated to 32 psi will still measure nearly the same when it's mounted and bearing the weight of the car. The air pressure within a tire is almost unaffected by the weight of the car. It's better to keep your gauge at room temperature. While it's convenient to keep a pressure gauge in the glove box, very hot or cold temperatures can impact performance. A typical car tire measured at 30 psi during 80-degree temperatures will register 25 psi when the outside temperature drops to 30 degrees. Tire pressure drops as the weather gets colder. The valve stem's dust cap is to keep dirt out, not air in. With a tire that is undamaged and properly mounted on the rim, most of the pressure loss comes from air migrating through the rubber sidewall, not through the inflation valve. Nearly all tires lose pressure gradually over time, even if the car isn't driven or the tire isn't mounted on the car. They can also be bulky and typically cost more money, running from $20 to $50. Most dial gauges are easy to read, but models with an extension hose take two hands to operate. Some dial gauges have more features than pocket-sized gauges-including an extension hose, bleeder valve, dual-scale dial, and shock-resistant dial cover-but we have found that they aren't necessarily more accurate. While batteries can last for years, depending on use, they will run down eventually and need replacement.ĭial gauges have an analog dial, resembling a clock face, with a simple needle to indicate the pressure. On the down side, however, digital gauges are a little bulkier than stick gauges and they require batteries. Some digital readouts light up, making them handy for checking pressure in low-light conditions.
They're also more resistant to damage from dust and dirt. Stick-type gauges, which somewhat resemble a ballpoint pen, are simple, compact, and affordable, but they are a little harder to interpret than most digital gauges.ĭigital gauges have an electronic LCD display, like a pocket calculator, making them easier to read. If you buy online to save money, check shipping charges to see if the purchase is still a bargain. If you need to check pressure in a darkened area, consider a digital gauge with an illuminated display. Buy a gauge with a wide-enough range that it can measure the pressure in a temporary spare, which is typically 60 psi. In no event shall we be liable for any damages, or warrant any of our products which are made defective as a result of damage in shipment, user's abuse, neglect or improper operation.There are three types of tire-pressure gauges: stick, digital, and dial. (Some states do not allow limitations on implied warranties, incidental or consequential damages, thus, some of the limitations or exclusions referred to above may not apply to you.) Remedies under this warranty shall be limited to the original purchase price of the claimed defective item. Proof of, and date of purchase will be required.
Items returned by the purchaser for warranty adjustment must be handled as stated in our return policy. We shall, at our option, repair or replace any items deemed by us to be defective under this warranty.
NOTE! Warranties do not cover bent hydraulic cylinder shafts. We shall not be liable for incidental or consequential damages. You have the responsibility for determining the suitability of items herein for your particular use.
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We warrant all other products, only to the original purchaser, to be free from defects in materials and workmanship for a period of 90 days from date of shipment.īecause we have no assurance of the purposes for which any of the items herein will or may be used, no warranty is given as to the fitness of the item for any particular purpose. Products we regularly stock that are purchased directly from the manufacturer are covered by that manufacturers warranty.
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