Your Tire Pressure

**leinahtan** · August 29th, 2005 09:54 PM

My figures:

Vehicle: Toyota Innova
Tire size: 205/65R15
Tire brand: Yokohama Aspec
Front pressure: 33 psi (loaded/unloaded)
Rear pressure: 33 psi (unloaded)
Rear pressure: 36 psi (loaded)

Note: Tire pressure figures on cold temperature recommended as per manual.

**geode** · August 31st, 2005 09:22 AM

front -> 30psi
rear -> 32psi

that's what my car manual (mazda familia) recommends for 195/55/15 spec tires. since those are my tire spec, i just followed :D

**111prez** · September 1st, 2005 08:15 AM

Originally Posted by likot

...di nga pala accurate ang psi reading sa mga gasoline station its better that you have your own tire pressure gauge...

tama yan. hindi na accurate yung mga dial tire pressure gauges nila. in addition, even the gas station attendant's own personal tire pressure gauge is not accurate so be wary also. unfortunately, medyo tamad lang talaga akong mag dala ng sariling gauge ko so i rely on them but still check it at other gas stations. buti nalang, medyo OC ako dito

three days ako, nag pa hangin ako dyan sa caltex at the corner of amorsolo and pasay road. it told the attendant to put in 35 psi on all 4 tires. he used his own tire gauge kasi hindi na daw accurate yung dial indicator sa gauge nila. pinakita pa nga niya sa akin ang reading everytime he finished filling up one tire. "mukhang" 35 psi naman.

last night, after loading up for gas at shell c5, nag pa check ako ulit ng tire pressure kasi medyo matagtag ang ride. aba, the tire pressure of the 4 tires were 48 (front right), 41 (front left), 45 (rear left) and 40 (rear right) as per the electronic tire pressure gauge of shell.

anyway, the tire pressure is now back to 35 for all, cold. or at least that is what the shell tire pressure gauge indicated

accurate ba itong mga electronic gauges ng shell ? okay pa naman ang gauge ang walang leaks pa yung hose nila. bagong bago

**niky** · September 1st, 2005 02:35 PM

Digitals will never be as accurate as analogue, but considering our analogue gauges here are 100 pesos pieces of crap, yes, it's relatively accurate. The digital gauges at shell always give me consistent readings... that's when the tire pumps are working.

**cutedoc** · September 1st, 2005 02:44 PM

30-30 di ko naman load ng mabigat rav4

**leinahtan** · September 2nd, 2005 07:30 PM

I own 3 types of gauges, 1 made in Japan in which a graduated rod comes out after detecting a pressure (maybe familiar to you as this is usually used in vulcanizing shops). My 2nd gauge (analogue type) made in Taiwan. My 3rd gauge (also an analogue type) made in Italy a type in which you can monitor tire pressure from a dial attached to a nozzle. Pulling the trigger inflates, pushing a release button deflates. This type is widely used in auto dealer service bays. Having these three types has no way for me to have inaccurate tire pressure. Well, of course, tires pressures are accurately obtained in the morning while air temperature is still cold. Tire pressure obtained during hot weather temperature are erratic due to air expansion.

**benchph1** · September 2nd, 2005 11:05 PM

eversince i bring our cars to our friendly shell gas station and have the tire pressure checked there. 30 psi for our cars and 35 psi for our van. then i give 5 pesos to the attendant.

**fakesaint** · September 11th, 2005 05:08 PM

32 para safe, & dapat magdala ng sariling gauge...how many times kyo chek ng tire pressure? weekly b? npansin ko pag after every 2 weeks mdyo marami na nababwas...

**Alpha_One** · September 11th, 2005 05:45 PM

Originally Posted by leinahtan

I own 3 types of gauges, 1 made in Japan in which a graduated rod comes out after detecting a pressure (maybe familiar to you as this is usually used in vulcanizing shops). My 2nd gauge (analogue type) made in Taiwan. My 3rd gauge (also an analogue type) made in Italy a type in which you can monitor tire pressure from a dial attached to a nozzle. Pulling the trigger inflates, pushing a release button deflates. This type is widely used in auto dealer service bays. Having these three types has no way for me to have inaccurate tire pressure. Well, of course, tires pressures are accurately obtained in the morning while air temperature is still cold. Tire pressure obtained during hot weather temperature are erratic due to air expansion.

What? Hot weather will not give you erratic readings! Assuming temperature remains constant, your readings will remain constant. I believe there is a misunderstanding of some basic laws of physics here.

Everything else remaining the same, when temperature rises, so does the pressure of gas. But that doesn't mean taking tire pressures at higher temperatures will result in erratic readings!

Pressure readings should be taken when the tires (not the air) are cold, that is, left standing still after a few hours of driving. The normal driving tire temperatures are significantly higher than your parking temperatures.