Q: I had my tire pressure sensor go off while coming home from work from San Jose on Monday so I stopped by a 76 gas station and its air machine was broken. So then I went to a Valero station ...

Some, like Santa Rosa rental car agent Chris Vorlob, look for gas stations that do not have coin boxes on their air machines. Vorlob was unaware that state law entitles him to free air at any gas ...

No more searching for gas stations with a working air pump or dealing with broken machines. And many portable compressors come with useful extras like built-in pressure gauges or flashlights.