How often do you need to pump your tyres?

[Etsk22]

Hi All,

 

I am driving a c180 2013 w204.

 

Usually I would pump my tyres around 240 psi (not sure if this is the correct unit). Recently I noticed, in 2 weeks, the pressure would reduce to around 210+. In less than a month, it would drop below 200. Is this normal?

 

Appreciate any comments from bros. Thanks.

 

 

[jtang]

Perfectly normal....slow air loss in a healthy tyre is normal, that's why we need to top up air every month. I usually check every 2 weeks.

The tyre pressure difference will also depend on how hot the tyres are when they are being checked....eg hot sunny day, long distance driving, aggressive hard cornering, doing donuts...lol, etc. 

It's more accurate to measure the tyre pressure when cold....like in the morning.

[Phang]

I pump the tires every 3 ~4 weeks

 

as long as all four tire pressures reduce more or less to the same pressure, i.e. all four dropped from 230 to 209

 

I don't really bother how much pressure they dropped.

 

if there is one tire dropped significantly more than the other three, then there is a leak at that particular tire.