im Axle Specialists

General Tyre pressure

Currently reading:
General Tyre pressure

S

stephanie25x

New member
Joined
Nov 17, 2017
Messages
15
Points
7
Hi there

I have a 15 plate 1.2 pop and just wondered if anyone knows what my tyre pressure should be? I can’t find it anywhere in the manual.

Thanks!
 
As a Panda 4x4 owner I discovered handbook the place to go. Or rather the slim supplement in my book pack. As tyre size according to tyre and tyre pressure websites is wrong. Aside from economy and avoiding uneven wear, regular checking forewarns of slow punctures. A proper compressor dead easy to use and wheel doesn't need removing before repair. :idea:
 
32 front 30 rear.
These are the pressures that all of my cars have been happy with.

Let's have an argument here eh? (y)

How accurate do you want the tyre pressures?
How accurate are your pressure gauges?

Mick.
 
Last edited:
Mick F said:
32 front 30 rear.
These are the pressures that all of my cars have been happy with.

Let's have an argument here eh? (y)

How accurate do you want the tyre pressures?
How accurate are your pressure gauges?

Mick.
Click to expand...

:facepalm:

Why do you always make such silly recommendations?

If you were pumping the tyres up on my car you’d have it completely wrong...

Car companies go to great lengths to get the pressures right, follow what the manufacturer says and not some random figures.
 

Attachments

  • B5518DE7-6DE5-4F82-AAE7-84DC70E8B05A.jpeg
    B5518DE7-6DE5-4F82-AAE7-84DC70E8B05A.jpeg
    2.9 MB · Views: 42
  • 0348228E-7083-437A-B3BF-AD778A63D1E0.jpeg
    0348228E-7083-437A-B3BF-AD778A63D1E0.jpeg
    645.3 KB · Views: 59
306maxi said:
:facepalm:

Why do you always make such silly recommendations?

If you were pumping the tyres up on my car you’d have it completely wrong...

Car companies go to great lengths to get the pressures right, follow what the manufacturer says and not some random figures.
Click to expand...

Fiat could make it simple by putting the correct sticker on the door, all of my 30 years of Accords and my Mazda have had this
 
rallycinq said:
To add to the controversy, how do you set your tyre pressures for this weather?

Freezing in the morning and roasting in the afternoon.

Or is everyone using nitrogen?

D
Click to expand...
Absolutely!
.......... and who knows what their pressures are?
You cannot be sure. These days I always use my foot pump and its gauge, but in the past i've use one on any garage forecourt.

You're supposed to check the pressures cold, but they'll be warm or even hot when you use a garage forecourt.

Had some new tyres fitted a couple of weeks ago, and the tyre place inflated them of course. You would expect they know what the pressures should be and you would expect that their professional equipment is calibrated and tested.

I checked them a few days later, and they were 3psi too high ............... or were they correct, and my gauge reads 3psi too low?

Mick.
 
A few weeks ago, I had four brand new Michelin Primacy 4 tyres fitted to my Saab at a well known High Street tyre outlet (not the one most people instantly think of!) as I got a really cracking deal including free tyre fitting. When they'd finished mounting the tyres, which were obviously cold, I left the place, drove around the corner and parked up at the side of the road and checked all four tyre pressures with my trusty digital Halfords tyre pressure gauge. All four tyres were out by at least 3psi, with a difference of nearly 4psi between the lowest inflated tyre and the highest inflated tyre. So it seems that either not enough care is taken by tyre shops to correctly inflate tyres, or their equipment just isn't calibrated. My advice, buy a decent tyre gauge and check them at least fortnightly yourself, especially if you don't have TPMS.

The other thing people fail to remember too, is to have the wheel alignment checked at least once a year. Our roads are currently in a pretty diabolical state. Potholes knock out wheel alignment, worn droplinks, worn shocks, all lead to premature tyre wear. And the damage it does to tyres, bulging in sidewalls etc, I see it all on a daily basis with the cars that come into our place.
 
frupi said:
A few weeks ago, I had four brand new Michelin Primacy 4 tyres fitted to my Saab at a well known High Street tyre outlet (not the one most people instantly think of!) as I got a really cracking deal including free tyre fitting. When they'd finished mounting the tyres, which were obviously cold, I left the place, drove around the corner and parked up at the side of the road and checked all four tyre pressures with my trusty digital Halfords tyre pressure gauge. All four tyres were out by at least 3psi, with a difference of nearly 4psi between the lowest inflated tyre and the highest inflated tyre. So it seems that either not enough care is taken by tyre shops to correctly inflate tyres, or their equipment just isn't calibrated. My advice, buy a decent tyre gauge and check them at least fortnightly yourself, especially if you don't have TPMS.

The other thing people fail to remember too, is to have the wheel alignment checked at least once a year. Our roads are currently in a pretty diabolical state. Potholes knock out wheel alignment, worn droplinks, worn shocks, all lead to premature tyre wear. And the damage it does to tyres, bulging in sidewalls etc, I see it all on a daily basis with the cars that come into our place.
Click to expand...

Definitely. When changing my winters over to summers last Friday, I noticed one of my rear dampers was leaking on my BMW, if not for me checking, it would be December till it got MOTed and failed on it.

To counter your point about tyre fitters, we went to ATS the other day to get tyres fitted to my impreza and was asked what pressures I wanted and the tyres were all equal and bang on the money too.
 
Last edited:
306maxi said:
Definitely. When changing my winters over to summers last Friday, I noticed one of my rear dampers was leaking on my BMW, if not for me checking, it would be December till it got MOTed and failed on it.

To counter your point about tyre fitters, we went to ATS the other day to get tyres fitted to my impreza and was asked what pressures I wanted and the tyres were all equal and bang on the money too.
Click to expand...

Funnily enough, it was ATS I went to (the free fitting offer on Michelin tyres did it for me!). They branch I went to didn't ask me what pressures the tyres were supposed to be, they just filled 'em. The tyre pressure chart is inside the glovebox, but I guess they just went of their generic 'chart'. I knew from the start they wouldn't get it right, every single tyre shop I ever go to has never put the correct tyre pressures in because probably, the gauges aren't what they're cracked up to be. You were clearly fortunate with your Impreza that the gauge was correct, it's just not been my experience sadly.

Other than that, they did a great job (y)
 
Trouble is, who calibrates these things?

Having been in the technological environment, calibration of test-equipment is a major concern.

Pay £28 for a footpump with a gauge, and use it for years, and how accurate and precise was it to start with, and how accurate and precise will it be four years down the line?

http://www.halfords.com/workshop-to...auges/michelin-digital-double-barrel-footpump

Are there any certificates for this item?
Not with mine, and no calibration maintenance recommendation schedule for it either. Mine is four years old.
How old is yours?
Has it ever been checked?
Are you confident and positive that your tyres are spot on the correct pressure?

I'm not.

Mick.
 
Last edited:
Mick F said:
Trouble is, who calibrates these things?

Having been in the technological environment, calibration of test-equipment is a major concern.

Pay £28 for a footpump with a gauge, and use it for years, and how accurate and precise was it to start with, and how accurate and precise will it be four years down the line?

http://www.halfords.com/workshop-to...auges/michelin-digital-double-barrel-footpump

Are there any certificates for this item?
Not with mine, and no calibration maintenance recommendation schedule for it either. Mine is four years old.
How old is yours?
Has it ever been checked?
Are you confident and positive that your tyres are spot on the correct pressure?

I'm not.

Mick.
Click to expand...

Good point! I’m off to set my pressures to 32psi at the front and 30 at the rear with an uncalibrated pressure gauge as this is somehow better...
 
frupi said:
Funnily enough, it was ATS I went to (the free fitting offer on Michelin tyres did it for me!). They branch I went to didn't ask me what pressures the tyres were supposed to be, they just filled 'em. The tyre pressure chart is inside the glovebox, but I guess they just went of their generic 'chart'. I knew from the start they wouldn't get it right, every single tyre shop I ever go to has never put the correct tyre pressures in because probably, the gauges aren't what they're cracked up to be. You were clearly fortunate with your Impreza that the gauge was correct, it's just not been my experience sadly.

Other than that, they did a great job (y)
Click to expand...

Or they just wanted to put enough air in all 4 tyres to pop the beads.

To be fair I stood there and watched the guy putting the tyres on and had a conversation, you shouldn’t have to do that to get proper service though.

It actually resulted in the tyres being a bit overinflated as I just gave him an arbitrary figure and then went and deflated the tyres as I wanted to make sure the pressures were correct.
 
I bought a calibrated tyre pressure gauge two/three years ago, and check my tyres frequently when they are cold, just had service done and all four tyres have 1mm more thread in the center of the tyre,
Which indicates under inflation, borrowed a friends cheapo guage and it reads 3psi less than mine does, so i've been driving with all my tyres 3psi under inflated for years .
 
Officina red said:
I bought a calibrated tyre pressure gauge two/three years ago, and check my tyres frequently when they are cold, just had service done and all four tyres have 1mm more thread in the center of the tyre,
Which indicates under inflation, borrowed a friends cheapo guage and it reads 3psi less than mine does, so i've been driving with all my tyres 3psi under inflated for years .
Click to expand...

Could also be that the place servicing your car aren’t great at measuring tread depth. The Fiat dealership I went to seemed to think my tyres were getting more tread as they were getting older.
 
306maxi said:
Could also be that the place servicing your car aren’t great at measuring tread depth. The Fiat dealership I went to seemed to think my tyres were getting more tread as they were getting older.
Click to expand...

Could well be, i did check the front tyres , i think i agree with them but it's hard to confirm it,
 
Is it better to be over-inflated or under-inflated?
Obviously it's better to be spot on, but how do you know if you are?

If you inflate to the pressure stated in the handbook, and you are sure the pressures in the tyres are correct, how do you know the pressures are correct for your new tyres when they are a different make (but same size) to the originals?

Different tyres need different pressures?
To be honest, I don't know with regard to car tyres, but I do know with respect to bicycle tyres. Same bike with same size tyres but different makes state different pressures. It's all to do with design.

Mick.
 
You must log in or register to reply here.

Similar threads

Edgie70
Technical Tyre pressure sensors
Replies
13
Views
612
steveras57
S
5
Technical ESC, Hill Start unavailable, Tyre Pressure light, EML = Limp Mode
Replies
19
Views
1K
500dad
5
serhioje
Technical fuel pressure
Replies
7
Views
476
serhioje
serhioje
S
  • Question
General Tyre size
2
Replies
26
Views
721
John202020
John202020
Tessia
Technical Wet weather tyre suggestions
2 3 4
Replies
78
Views
2K
Tessia
Tessia
Back
Top