How to Check and Adjust Car Tire Air Pressure

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Today we’re going to talk about getting your tires properly inflated. This is going to give you the best fuel economy and it’s also going to give you the best wear. Most vehicles are always going to have a recommendation in the door or you can in the owners manual. A tech tip is you want to the with the tire “cold”. This means the has completely cooled down and isn’t hot from driving. Measuring that way will give you the best reading possible.

We’re going to check and our tires today using the Eastwood digital tire pressure gauge. This gauge is good from zero to 100 psi so if you have larger trucks with the higher-pressure ratings it will still be able to service them. On the flip side it’s very accurate below 10 psi so you can even adjust tire pressures when rock crawling, mud bogging, or even driving on beaches where you would drop your pressures down. This tool can read it properly and within 1/10 of a PSI.

The first thing you want to do is to make sure it’s fully seated so you’re not leaking and you’re getting an accurate measurement. The nice part about this gauge is that even if you’re in an area where lighting is limited you have a light you can turn on to see what you’re doing.

As you can see this tire is quite a bit low in air so we’re going to bring the pressure up. One thing to note is that the gauge read zero while it’s filling with the trigger fully depressed. As you fill the tire you can let off the trigger and gauge will read the current air pressure.

If you overfill just a little bit you don’t need to remove the hose.  To let air out just pull the trigger in quarter of the throw and it’ll let the air out.

By doing that the pressure is right around 32 psi and you can move on to the next tire.

As you can see this job is easy to do on your own even without a shop.



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