Tyre Pressure (1 Viewer)

[sally47]

Checking tyres yesterday and in the book for my tyres it says 4.5 bar equals 65 psi on putting pressure gauge on readings of 42 to 46 psi on all six tyres (tag axle) have the tyres lost that much pressure over winter or am I totally wrong .Your comments please ps tyre size
215/75

 

[Rapido925M]

Did you check BEFORE winter?
You can’t know what you lost if you don’t know what you had!

Set your tyres to whatever pressure you want and check them regularly.

Gordon

 

[dunnah01]

Losing 20 psi in a few months isn't right. I'd check the gauge isn't reading low by using a different one.

 

[Podney]

Yes,that’s a big drop. How old are the tyres? If over five years,consider changing them. Are you using the same gauge? Temperature can make a difference,but not enough to account for 20 psi. Maybe not all the lost pressure was over winter?
No other ideas for you,but those with more knowledge than me will be along soon.

 

[Lenny HB]

Alloy wheel by any chance, quite common for alloys to lose pressure from corrosion on the inside of the rim where the tyre seals to it.

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[BouncyBoatFolk]

If the loss is consistent on all tyres across all the axles then the gauge has to be the suspect. I've assumed you set the pressures with the same gauge at the end of last year?
Mike.

 

[sally47]

Should have said all tyres were only fitted twelve months ago so never checked took it for granted the fitters were right

 

[Spriddler]

all tyres were only fitted twelve months ago so never checked took it for granted the fitters were right

Well, there's your answer.

 

[scotjimland]

Should have said all tyres were only fitted twelve months ago so never checked took it for granted the fitters were right

and you haven't checked in 12 months ?

losing 20 psi over 12 months is quite likely

when you have tyres fitted they generally ask what pressure you want..

 

[Podney]

They probably didn’t want your fillings to fall out.

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[zac]

My tag axle is fitted with tyrepal and has only dropped 4psi approx per wheel in over 10 months, i would fit some sort of monitoring system so you can see if they are going down over a period of time

 

[dunnah01]

My Chinese tyrepalette has dropped from 80 to 65psi in 4 years on blingy alloys, so less than 5psi a year. I'm on Agilis so seeing how low I dare to go before putting some air in...

 

[Rapido925M]

I had one tyre (on a steel wheel) which lost 2psi per day! Keeping it topped up was a PITA, especially when wild camping BUT I'm a little bit tight, so wouldn't pay for a repair/check/new tyre for 3 years. Sorted now.

Gordon

 

[Reallyretired]

The pressures set by a garage at a service or tyre replacement may not be the ones you want, goodness knows where they get the information from. I always check and reset as necessary when I get the van back.

 

[Rapido925M]

One of the databases used thinks that my 2.7litre 316 Sprinter is a Mercedes car and recommended 33psi all round. A “better” one recognised it as a 2.2litre 311. Trust no one!

Gordon

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[Lenny HB]

Get yourself a Tyrepal then you can keep an eye on them, good discount for Funsters.

 

[Nirvanauk]

I’ve just had mine in for a service and I like to run 65 in the back and 55 in the front. The service sheet said they had put 72 in the back and 65 in the front. I checked them and they were all around 60 so they hadn’t done anything! Oh well.