Car tyre pressure help

[sami_boy]

I used to set care tyre pressure to 32 for last 6 years
But recently went to change car tyres and there, the owner said that I should set it to 28 psi

He also said that, it is a misbelief of setting it to 32 and if I do so the car would start to vibrate and start to make sounds.

He is not an idiot but an engineer in motor mechanics with Msc completed in the UK.

What do you think guys.?

I think he's correct. The recommended tyre pressure for mine is 34 and I've used it for like a year and felt it's too much. Now I'm keeping 30 for the front and 28 for the back. Feels much better now.

Also, remember to check the pressure when the tyres are cold.

 

[Sandy_Fdo]

28-34 psi

හුලන් ගහල ඩ්‍රයිව් කරල බලපන් උඹට සෙට් වෙන්නෙ කොහොමද කියල (depending on road conditions, load/weight, temperature, atmospheric pressure, suspension setup, rubber compound in the tyres, etc.)

වැඩිපුර ගැහුවොත් MPG වැඩි වෙයි. Acceleration අඩු වෙයි (higher rotating mass) + brake performance අඩු වෙයි (less traction)

Yep. Deka deka adu karala balanna one. Mulin 30 karala balanawa

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I think he's correct. The recommended tyre pressure for mine is 34 and I've used it for like a year and felt it's too much. Now I'm keeping 30 for the front and 28 for the back. Feels much better now.

Also, remember to check the pressure when the tyres are cold.

pathetic me ban. I used to drive for 6 years now with 32
------ Post added on Feb 14, 2022 at 2:03 PM

 

[Emios]

32 is for made in japan tires.Those rubbers can handle the vibration.For others can't go above 28 in sl roads.Not good for vehicle bushes and shocks.It's not a misbelif it is the recommended pressure but not suited for sl

 

[kasun090354t]

Sathi deken dekata hulan check karanna machan.

Shead eken hulan gahapan. Calibrated machines tiyenne. We can set the psi and pump.

මන් ඔය වැඩේ තමා දිගටම කරේ. දැන් මේ අවට තියන ඔක්කොම කැඩිලා. තව අවදානම් සහගත දෙයක් තියනවා ඔකේ. පොලක් වෙලාවට වෑල් කර කෙලවේනවා හුලන් ගහනකොට. එහෙම කෙල වෙලා හුලන් බැස්සොත් බඩු. එකදවසක් ඔකුන්ගේ බටේ ගහපු ගමන් තිබ්බ හුලන් ටික බැස්සා කියපන්කෝ. එදා ඉදන් සෙඩ් වලට යන්නේ නෑ.

 

[Lakshan-Seram]

වාහනේ හදන කම්පනි එකෙන් කියනව නේද තියන්න ඕන ප්‍රෙෂර් එක. අර ඩ්‍රයිවර් සයිඩ් දොරේ දාරෙ උඩ ස්ටිකර් එකක් තියෙන්නේ.ඒකෙ තියෙනවා.

Wahane gahala tiyena tyre pressure walata lankawe parawal wala diwwoth keli bima helenawa.

anika mehe godak aya dana cheap tyres wala hardness wedi ekai tikak aduwen gahanne.

paw ban api

 

[Hyaenidae]

Wahane gahala tiyena tyre pressure walata lankawe parawal wala diwwoth keli bima helenawa.

FD eka export model neda? Keeyada gahala thiyenne?

HU ekak hambunei?

 

[Lakshan-Seram]

Can't give exact figures w/o your vehicles' make and model but generally, manufacturers recommend 32psi for vehicles they export to ASEAN countries (and Sri Lanka shares that set of recommendations almost all the time)

You can find manufacturers recommended tyre pressures on the drivers side door sil/B pillar, however for JDM vehicles that recommendation is set according to Japanese road and weather conditions

I also have a set of Goodyear (Japanese and German) tyres and I’m also pumping 28psi and the manufacture recommendation is 32psi. 32is too much as I feel. May be the rubber is now old and got hardened or something. Need to look for new tyres now.

 

[Cypress]

 

[Hyaenidae]

I also have a set of Goodyear (Japanese and German) tyres and I’m also pumping 28psi and the manufacture recommendation is 32psi. 32is too much as I feel. May be the rubber is now old and got hardened or something. Need to look for new tyres now.

I've been pumping 32 since the car was brand new and had no issues

 

[Lokka Ayya]

Can be. But he is having money ban. Very well an educated guy. Not money minded at all. I didn't fix the tyres from him.

Went to change rear shocks.

I had Yokohama tyres in my car.. with good pressure it was smooth.. recently had to change all 4 tyres...used a Chinese tyre..rubber seems bit hard . But i feel it vibrates a bit with the recommended pressure..need to lower a bit and check...

 

[Hyaenidae]

I had Yokohama tyres in my car.. with good pressure it was smooth..

I still have my factory Yokohamas

 

[Lakshan-Seram]

I've been pumping 32 since the car was brand new and had no issues

Unfortunately roads I drive are not that good.

mewa thama danna wenne

 

[Hyaenidae]

Unfortunately roads I drive are not that good.

mewa thama danna wenne

Yokohama thibba greasemonkey 37k

 

[Lakshan-Seram]

Yokohama thibba greasemonkey 37k

Tyre 4 danna 140i wedak na ban mama duwanneth na wediya.

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Mehe tyre kiyanne raththaran wage
------ Post added on Feb 14, 2022 at 2:59 PM

 

[Hyaenidae]

Tyre 4 danna 140i wedak na ban mama duwanneth na wediya.

CEAT daamuthe?

 

[Lakshan-Seram]

CEAT daamuthe?

Pissu hedei.

eka parak van ekata dala 22psi gahala diwwe. Tyre gewila newe ain kare kambi kedila.

suspension system ekatama kelawena wedak oka.

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60 newe 55
------ Post added on Feb 14, 2022 at 3:08 PM

 

[Hyaenidae]

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60 newe 55
------ Post added on Feb 14, 2022 at 3:08 PM

Mage 60

 

[Lakshan-Seram]

Mage 60

Ube rim 17 ne

 

[imhotep]

Under inflation has it's downsides. It increases the rolling resistance, thus increasing the fuel consumption, creates uneven tread wear and affects your braking.
Under inflation is estimated to lower mileage by around 0.4 percent for every one PSI drop in pressure of all four tires.

Both Over-inflation and Under-inflation have their dangers. The best is what the manufacturer recommends.

NOTE : But if on a 4WD in sand (like the sand dunes in the Middle East or even on the beach) you need to deflate the tyres. It increases the contact pitch. The side walls bulge out and the vehicle will easily float in the sand. (instead of sinking)
Even while off-roading it's better to reduce the tyre pressure. You need to keep an inflator at hand to pump the tyres again when back on road.

Also lowering the pressure causes an increased risk of aquaplaning...

 

[dinuksha_asela]

From where did you buy it ? Ali?

From takas.lk. Tire thiyenne Yokohama Geolander A/T set ekak. Chinese tires num wadiya hulan gahala duwanna num baa..