The poll has less information. According to my knowledge car tire pressure drops 1 PSI max in a month. So the ideal tire pressure checking is once in a month (if you don’t have digital equipment fitted in car. Like few modern cars does).
So unless any significant air reduces you notice, checking the pressure once in a month is ok. Also I prefer to stick with the manufacturer recommended PSI. So by far with my bikes and car I always fill 1 PSI extra than the recommended one. Like if recommended is 28 I fill 29-30PSI. This way I get little more mileage (maybe) also I fill the air again after two month. But I just prefer 1 or max 2PSI extra than recommended one, as tire has a performance role.
Now a days I’ve a pressure gauge but still I check once in a month, unless I noticed any air loss or tires looks flat than regular.
So unless any significant air reduces you notice, checking the pressure once in a month is ok. Also I prefer to stick with the manufacturer recommended PSI. So by far with my bikes and car I always fill 1 PSI extra than the recommended one. Like if recommended is 28 I fill 29-30PSI. This way I get little more mileage (maybe) also I fill the air again after two month. But I just prefer 1 or max 2PSI extra than recommended one, as tire has a performance role.
Now a days I’ve a pressure gauge but still I check once in a month, unless I noticed any air loss or tires looks flat than regular.