Author Topic: How do I interpret this tyre pressure label?  (Read 386 times)

Jazzfreak

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How do I interpret this tyre pressure label?
« on: December 05, 2024, 01:18:03 PM »
How to read this label please?
Should it be 35 front and 33 rear or 38 front and 36 rear.? Not very clear but I suppose it’s connected with load……so why isn’t it clear? :o


Jazzfreak

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Re: How do I interpret this tyre pressure label?
« Reply #1 on: December 05, 2024, 01:26:04 PM »
A better full pic.  It shows a squiggly line either side of 160km/h…really useful…not!


Lord Voltermore

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Re: How do I interpret this tyre pressure label?
« Reply #2 on: December 05, 2024, 01:37:14 PM »
 Squiggle before speed means  for speeds   up to 160 kph (100 mph) .Squiggle after the speed means pressures if you typically expect to exceed that speed.   

I dont know why they didnt use the standard  mathematical symbols  < (less than)  ,  > (more than)

My car has a more detailed label  with increased pressures if you are fully laden with 5 passengers. and also if towing.  (pre facelift mk4's may not show a towing pressure as they are not type approved to tow a trailer. )

This white label also  illustrates its contrast with 'Premium sunlight white pearl' paint  :o
« Last Edit: December 05, 2024, 02:31:12 PM by Lord Voltermore »
  I will fix that dripping tap.  No need to keep reminding me every 3 months.

Tombola

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Re: How do I interpret this tyre pressure label?
« Reply #3 on: December 05, 2024, 02:23:58 PM »
I think the wavey line is called a Tilde which can mean "about" or "approximately" 
Front 35psi Rear 33psi   

Jazzfreak

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Re: How do I interpret this tyre pressure label?
« Reply #4 on: December 05, 2024, 03:03:11 PM »
Squiggle before speed means  for speeds   up to 160 kph (100 mph) .Squiggle after the speed means pressures if you typically expect to exceed that speed.   

I dont know why they didnt use the standard  mathematical symbols  < (less than)  ,  > (more than)

My car has a more detailed label  with increased pressures if you are fully laden with 5 passengers. and also if towing.  (pre facelift mk4's may not show a towing pressure as they are not type approved to tow a trailer. )

This white label also  illustrates its contrast with 'Premium sunlight white pearl' paint  :o



Interesting. My previous Jazz showed similar to yours( with/without passengers). Easy peasy. But this one with squiggles,well just barmy really unless a squiggle is used in Japan?
Of course I did work it out but why not make an easy thing difficult . That’s what I say.. ;)

HertsHonda

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Re: How do I interpret this tyre pressure label?
« Reply #5 on: December 05, 2024, 04:09:57 PM »
Re: squiggles / wavey line they are Tilde characters. IMHO mean less than or greater than.
More normally mean 'approximately'.
But in this instance:-
~ 160 = less than 160kph.
160 ~ = greater than 160kph.

As others have said - a non standard way of expressining less than and greater than.

ninanina

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Re: How do I interpret this tyre pressure label?
« Reply #6 on: December 05, 2024, 04:52:36 PM »
Absolutely if you have up to 3 people in the car (plus their luggage) and don’t drive above 100mph the tyre pressures should be:

Front 35psi Rear 33psi

Tombola

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Re: How do I interpret this tyre pressure label?
« Reply #7 on: December 05, 2024, 08:29:53 PM »
Absolutely if you have up to 3 people in the car (plus their luggage) and don’t drive above 100mph the tyre pressures should be:

Front 35psi Rear 33psi
In my younger days mine would have been set to 39psi Front 38psi rear  ;)

Jazzik

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Re: How do I interpret this tyre pressure label?
« Reply #8 on: December 05, 2024, 09:57:59 PM »
Absolutely if you have up to 3 people in the car (plus their luggage) and don’t drive above 100mph the tyre pressures should be:

Front 35psi Rear 33psi
In my younger days mine would have been set to 39psi Front 38psi rear  ;)

So I am (still?) in my younger days. ;D I always set them at 39 psi front - 38 psi rear.
Usually 2 people on board, sometimes 3 and very, very sometimes even more than 3. 
« Last Edit: December 05, 2024, 10:25:01 PM by Jazzik »
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Kremmen

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Re: How do I interpret this tyre pressure label?
« Reply #9 on: Today at 03:51:11 AM »
Does 39 / 38 give a harsher ride ?

I'm happy with the 35 / 33 as I'm usually the only occupant and no luggage
Let's be careful out there !

coldstart

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Re: How do I interpret this tyre pressure label?
« Reply #10 on: Today at 07:29:20 AM »
Does 39 / 38 give a harsher ride ?

Of course it gets harsher! - Tyre pressure is always a trade off between comfort / handling / tyre wear / fuel-economy.

I find the handling with the default pressure recommendation for the partially loaded vehicule of 35 / 33 psi to be somewhat on the "mushy" side and prefer going to 36 / 35 psi.

« Last Edit: Today at 08:14:54 AM by coldstart »

Lord Voltermore

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Re: How do I interpret this tyre pressure label?
« Reply #11 on: Today at 11:28:20 AM »
I think the higher pressure when heavily loaded or driving fast means its also an acceptable pressure  at other times. If you are willing to compromise on ride etc.

Even if you sometimes exceed 160 kph, you will be slower  most of the time.    Also the loading is just an approximation. To use a Japanese analogy,  3 Sumo wrestlers probably weight more than 5 Geisha .

But it doesnt necessarily justify running  pressure lower  than 35/33 psi  in  the hope of an improved ride,etc , or just because it sounds too high compared to pressures recommended in the past.     
  I will fix that dripping tap.  No need to keep reminding me every 3 months.

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