I do not know what I did without a portable 12v air compressor. Before when my car tires got low, I’d have to drive to the gas station when the car needed gas to get the attendant to turn on the air for me and fill my tires myself. I thought that was really the only option I had besides stopping for an oil change regularly. Then I found out that there are specially made air compressors just for car tires.
These devices are such a great thing to have because they are portable so you can always keep one in the car. You can fill your tires up in under a minute which is another great benefit to them. The importance of keeping your tires filled properly cannot be stressed enough. You want to stay safe and to do this the tires have to be filled to the correct pressure. You also want to get great mileage on every tank of gas you use.
The other thing is keeping your tires filled properly so that you can also get more mileage out of them. I recommend getting one of these.