tire pressure

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Old 26 Jun 2006, 05:17 pm   #1 (permalink)
runsrealfast
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Default tire pressure

Here is possibly the most random question. What is the recomondation
for checking your tire pressure (meaning how often, not how to do it)?
I have never heard anything, and even after checking the paperwork from
the tire manufacturer when I bought my tires it just said "often". What
does that mean? This is strange I know but I was just wondering.

Thanks

john
http://johntaylor.somee.com

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Old 26 Jun 2006, 05:39 pm   #2 (permalink)
mrdarrett@gmail.com
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Default Re: tire pressure


runsrealfast wrote:
> Here is possibly the most random question. What is the recomondation
> for checking your tire pressure (meaning how often, not how to do it)?
> I have never heard anything, and even after checking the paperwork from
> the tire manufacturer when I bought my tires it just said "often". What
> does that mean? This is strange I know but I was just wondering.
>
> Thanks
>
> john
> http://johntaylor.somee.com



I'd say at least every two weeks.

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Old 26 Jun 2006, 06:24 pm   #3 (permalink)
m Ransley
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Default Re: tire pressure

I check mine about twice a year, Michelins loose the least amount of air
in a test I saw. So it depends on how fast yours loose air

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Old 26 Jun 2006, 09:35 pm   #4 (permalink)
cmuller
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Default Re: tire pressure

Wow, twice a year? I check mine at every gas up.

"runsrealfast" <tay01020@yahoo.com> wrote in message
news:1151360241.283257.287510@y41g2000cwy.googlegr oups.com...
> Here is possibly the most random question. What is the recomondation
> for checking your tire pressure (meaning how often, not how to do it)?
> I have never heard anything, and even after checking the paperwork from
> the tire manufacturer when I bought my tires it just said "often". What
> does that mean? This is strange I know but I was just wondering.
>
> Thanks
>
> john
> http://johntaylor.somee.com
>



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Old 26 Jun 2006, 11:03 pm   #5 (permalink)
pws
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Default Re: tire pressure

cmuller wrote:
> Wow, twice a year? I check mine at every gas up.


Same here. If one tire is 5 or 10 pounds low and the others are
consistent, you can bet that you have puncture or a loose bead, either
of which needs to be taken care of.

Temperature variations can also play a role. Even if you don't do it
every fill-up, I would consider once a month a very minimum for safety.

Pat
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Old 27 Jun 2006, 05:47 am   #6 (permalink)
m Ransley
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Default Re: tire pressure

If you have to check them that often think about new tires, I wonder if
anybody checking them every month or less has Michelins.

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Old 27 Jun 2006, 06:11 am   #7 (permalink)
m Ransley
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Default Re: tire pressure

I have steel rims but I have had alloy rims that deteriorated and
leaked, I had fair luck having the tires removed the bead cleaned with a
wire brush on a drill and sealed, but once alloy wheels start to leak
they are nothing but trouble. If I had leaking alloy rims I would call a
few tire places and try to get someone confident thay could fix the
problem.

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Old 27 Jun 2006, 08:31 am   #8 (permalink)
Daniel
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Default Re: tire pressure

runsrealfast wrote:
> Here is possibly the most random question. What is the recomondation
> for checking your tire pressure (meaning how often, not how to do it)?

==========================
If you're checking them at all, you've got the right idea.
First, you should have an accurate tire gauge.
See:
http://www.getagauge.com/
The dial gauge is much more accurate than the "pencil" gauge which can
easily be several pounds off.
To my mind, running accurate tire pressure is one of the simplest ways
you can improve your vehicle's performance.
I'm seeking to balance tire wear, compliant ride qualities and handling
- braking.
I tried something like fifteen or more slight pressure variations
before settling on the final numbers, which wound up with more pressure
in front than in the rear.
At slightly lower pressures, the car didn't seem to roll freely enough
coasting up to a stop and cornering response while softer could be
termed "mushy", yet I didn't like the harsher ride over road
irregularities at higher pressures so I experimented with many
different combinations.
Ever see race car pit crews with tire pyrometers measuring temperature
across the face of the tread to see how best to change pressure? It
does make a difference.
I check the engine oil, and look at the translucent reservoirs under
the hood (brake and power steering), as well as check tire pressure
weekly - Saturday mornings.
If the first tire pressure reading is good, I visually check the others
but leave them unchanged.
Temperature changes will cause the tire pressure to change, so I always
check them in the morning. That way if I'm driving the car at night,
when it's cool, the tires are at the correct pressure, and in the
daytime when it can be hot, the tires have somewhat more pressure, not
less.
If the tires are losing pressure, you will see a trend - and first
check the tightness of the tire valve. Usually, the pressure just
changes very slightly based on whether the weather is warmer or cooler.
Just check the tires at an interval with which you're comfortable. I
suspect many people never check their tires - only if the mechanic does
so at oil change intervals, so whenever you check them independently
it's an improvement.
I have a small air compressor powered by the cigarette lighter, so
adding air is simple, and then the separate pressure gauge I use has a
"bleed valve" so tiny amounts of air can be released to achieve
precisely the correct reading.

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Old 27 Jun 2006, 01:04 pm   #9 (permalink)
lexmurphy
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Default Re: tire pressure

runsrealfast wrote:
> Here is possibly the most random question. What is the recomondation
> for checking your tire pressure (meaning how often, not how to do it)?
> I have never heard anything, and even after checking the paperwork from
> the tire manufacturer when I bought my tires it just said "often". What
> does that mean? This is strange I know but I was just wondering.


A few years ago I researched this very question and found on the Tire
Manufacturers website that:

1. Air pressures should be set at the auto manufacturers recommended
pressures. These can be found in the owners manual or on an
information tag on the inside of the driver's door jam. These
pressures were determined by the auto manufacturer based on the best
vehicle handling characteristics.

2. The pressures should be checked every 250 miles.

This has worked for all my cars.
Lex

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Old 28 Jun 2006, 09:22 am   #10 (permalink)
pws
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Default Re: tire pressure

m Ransley wrote:
> If you have to check them that often think about new tires, I wonder if
> anybody checking them every month or less has Michelins.



Just curious, what is the deal with the Michelins? I have had Michelin
tires, don't remember the model, but I do remember a leaking tire from a
bad bead, though it may have been the wheel instead of the tire causing
this.

I would assume that they are not puncture-proof. I had a non-Michelin
tire with a nail puncture that was losing about one pound of pressure a
week.
Waiting half a year to check the tires would have let almost all of the
air out, though I would have noticed it long before that.

My last 5 tires replacements have all been from different manufacturers
and they have all worked basically the same since I always buy a sticky
summer performance tire that handles very well and wears out quickly.
None were Michelin and none leaked air at the bead, only when I picked
up nails and screws.

I am going to trust a tire from Yokohama, Toyo, Falken, Pirelli,
Hankook, Bridgestone, or any other major players in the tire market as
much as a Michelin as far as losing air.

Pat
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