My mechanic recommends me to pump at 28-30 psi for my stock rim 14" Falken 185/60/R14. After my Falken gone, will switch to Goodyear as Falken too "soft". but i always insist him to pump 31 psi front & 30 psi rear. it is recommended to follow your car manual or the sticker at your car door there.

I have never frequent petrol station air pump now, only go to workshop for "dry air"! Overpump, aquaplaning during raining/ explode is dangerous. An ex-colleague at petrol station overpumped his C*nt*nental S*m* but still within the tyre safety pressure, exploded during he was driving. Lucky he was ok & no accident occurred.

Dry air.. u meant nitrogen?

not nitrogen. workshop the air is through air compressor. my personal experience the pressure still the same psi after 1 month usage & no pumping. Air compressor--->>>http://en.wikipedia.org/wiki/Air_compressor
petrol station not, direct from atmosphere, ambient. again, my personal experience the pressure has dropped after 1 month usage & no pumping. i did a comparison on both cases. Both cases, only drive to & fro office & home, some drivings at town.
above is just my personal experience, there are still many factors need to be considered in order to get a fair comparison.

This post has been edited by ch_teo: Feb 25 2008, 10:52 AM

why did your friend's tyres exploded? Were the tyres old?

new tyre, detailing of tyre usage/mileage used before exploded/his driving habits/etc don't have.
he overpumped his other brands (no info on what brands) tyre no problem.

ehm.. i m testing new pressure today.

on 195/55/15 F1 GSD3 (max is 51)

now on 39/39

quite bumpy

but steering seems lighter.. lets see my mileage got increase or not

if he had no problem on other brands...then it could be that tyre manufacturing fault?

steering is lighter because lack of grip. Same case with me. Yesterday went a bit too quick on a corner exit and the steering swing out so quickly, almost didn't catch back on time

let me drive awhile with tis pressure..

see can tahan or not..

I pump 32psi all round. BFGoodrich G-Force Sport 195/50/15

..
refer to door panel pse.
LOL

im now on 27psi (cold) on all wheels. i think i dun wanna use higher than 27 or 28 or even 29 psi cuz when driving the air gets hotter and the psi goes up higher thus, stiffer ride.

I think it all depends on the tire design. if the side wall is very stiff using lower psi gives u more comfort.

Eg. My Barum Bravuris sidewalls are much more stiffer than my Falken 522 sidewalls.

This post has been edited by jasondotcom: May 21 2008, 04:12 PM

How much air pressure do i need to put for Vios original stock tyre?

175/70/r13..alwiz pump in 230kPa for all tyres..lazy to alwiz check..

Anyone notice that notice label kPa for spare tyre MYVI (near driver door) state that pressure is 420kpa? Isn't that too much for a thin tyre?

Front 32psi, back 31psi.

195/50/15.

front 230kpa, rear 220kpa

using 915/55/15

cool size u have man~
my stock car i put 34psi in front n rear 32psi~

anyone else?

stock ori tyre 185/55/15R ..front 33psi ,rear 31psi (read from analog gauge) not really accurate

if u pasang 'giant' subs at your rear boot. u may increase some psi at rear.due to the weight.

215/45/r17

35 psi front and back ...