Hi guys, I am currently having some problems with my tires. The thing is, one of my tire seems to have its pressure drops down really quickly. I pump all 4 tires at the same time, but it only takes few days for me to notice that the particular one tire seems kinds of deflated. When I go to the station to pump up the pressure, that tire was shown <50kPA. But anyway I was able to pump the pressure back up so I wasn't sure if it is punctured. The other 3 was fine though, so guys what actually is the problem?

nail lor....or valve loose.
send to tire shop.
they will help u check.

Most probably got nail. Better go tyre shop to check before you keep driving with low pressure which will damaged the tyre in not so long run.

go tayar shop,
they will remove the tayar, pump full, then dip in water.
then can see where it leaks.

once i kena bad tayar. leak from the seams