[devil_klm]

Originally Posted by saket77

I immediately slowed down. Later when I complained this to MASS, they checked the air pressure & it was more than 40-45 psi while I normally keep it to 30! Since then, I carry my own trusted gauge.

Off topic - Happened in my car too. Pressure was around 40PSI. I used the vehicle for 1 month with that. Recommending to add this in PDI checklist.

[ac 427]

PSI goes up, if you drive the car in extreme heat. Happened in my brio couple of months ago. Was driving from Mum - Pune. While leaving the PSI was 26, and when i came back it was 35.

cheers,
ac

[saket77]

Originally Posted by devil_klm

Off topic - Happened in my car too. Pressure was around 40PSI. I used the vehicle for 1 month with that. Recommending to add this in PDI checklist.

Yes, as it can be critical, it must be double checked.

Originally Posted by ac 427

PSI goes up, if you drive the car in extreme heat. Happened in my brio couple of months ago. Was driving from Mum - Pune. While leaving the PSI was 26, and when i came back it was 35.

cheers,
ac

Hello,

Though, I broadly agree with what you say, but I doubt that the increase in air pressure will be anything more than 4-5 PSI in current generation radials. The expansion was much more, at least double the above stated figure in the older cross ply tyres. Hence, a tyre that has been inflated at 30 PSI when cold & start of the journey will see a maximum PSI build up to about 35 PSI.

Anything more than that is over-inflation IMO.

Regards,
Saket

[tbppjpr]

Originally Posted by ac 427

Was driving from Mum - Pune. While leaving the PSI was 26, and when i came back it was 35.

The air pressure raises if the tyres have low air pressure and in your case the tyre pressure was 26 which is on lower side. If you had around 30 psi then it might not have increased that much.

Always remember that the low air pressure causes tyre bursts because the air increases in the tyres due to the heat. Whereas if the tyres have appropriate 'cold' air in the tyre from the beginning then there won't be much space left for the hot air to accumulate inside the tyres during long drives.

[sarathlal]

While we are contemplating on the central lock to be disabled in case of power failure, like the office door door example mentioned earlier, wont it defeat the purpose of safety against forced entries?