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Tyre sealant stuff - which one?



 
 
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  #21 (permalink)  
Old August 1st 08, 11:23 AM posted to uk.rec.cars.fuel.lpg,uk.rec.cars.misc,uk.rec.cars.modifications
David Hearn
external usenet poster
 
Posts: 397
Default Tyre sealant stuff - which one?

Burgerman wrote:
"David Hearn" wrote in message
...
Burgerman wrote:
"DanB" wrote in message
...
"John" wrote in message
...
I've just had my car converted to dual fuel and now have a 67-litre
LPG tank in the spare wheel well instead of a spare wheel, so can
anyone recommend a good tyre sealant?

Each of the tyres is in really good condition with between 6 and
7mm tread depth and the rims are alloys - just in case that makes
any difference.

Cheers,


My car never came with a spare, I have 2 cans of Renault 'Tyre
Repair Aerosol" - no idea if it's any good mind you :-)

--
Dan
Clio R27 F1 #65



I stuck a set of these on. Problem solved. No noticible difference in
ride once the pressure was reduced a few psi from stock. Technically
you need tyre pressure monitors too but thats up to you.


No, it's not up to you. They should not be fitted to vehicles which
do not have remote pressure sensors. The reason is, once a puncture
has occurred, they must be treated as a temporary space saver tyre (or
unmatched tyre) - i.e. 50mph/80kph max and only as a get you home type
thing. In the link you sent "you can do 100 miles or so at 50 mph all
the way home safely". Without remote pressure sensors you have no
idea whether you have a puncture, and so could be doing 70mph or
whatever.



Wrong. It is up to you. And it was up to me too! And I know all that.
Its easy to tell if ones a bit low just by driving it. I tried it by
letting 10 psi out. Feels horrible.
So I do not need tp sensors. You might but then thats "up to you" isnt it.


As eTyres says: "The other essential item of safety equipment for a
vehicle with Run-flat tyres is a Tyre Pressure Monitoring System
(TPMS). Run-flat tyres are designed to minimise the difference in ride
quality when a tyre is punctured. This is especially the case with
motorway driving where there is relatively little cornering.



Yep my gran wouldnt notice if you stole the whole wheel. I on the other
hand certainly can, even on the rear. As could most on this group I
would hope...

For this reason it
is difficult to determine that a tyre has lost pressure or is
operating in zero pressure conditions. Should the driver not be aware
of a loss of pressure they may well exceed the safety limits imposed
by the manufacturer. This would eventually cause the tyre to fail.
Run-flat tyres are not indestructible!"
http://www.etyres.co.uk/run-flat-tyres

D


As I said your choice!
I can easily tell when 10 psi is missing. And you can run a NON run flat
at 10 psi down on a motorway at 70 with little likelyhood of a problem.
Ask my mum she never checks tyre pressures and they are always half
flat... Now she needs tyre pressure monitors on ordinary tyres. I or
most of this group dont. Just a bit of "feel" and awareness.


Whether you can feel it or not - manufacturers of the tyres say you must
not do this.

In fact, Michelin say: "This Self Supporting Tyre (SST) technology
should only be used on vehicles originally designed for this type of
tyre. Do not fit ZP tyres on vehicles not designed for this technology."
http://www.michelin.co.uk/uk/front/affich.jsp?codeRubrique=20060308204909

Goodyear say: "Since your tires will simply keep going after they've
suffered pressure loss, RunOnFlat technology requires the presence of an
on-board TPMS (Tire Pressure Monitoring System) that lets you know that
your tire requires servicing. Without such a system, you would have no
way of knowing that your tire had suffered a puncture or a blow out."
http://eu.goodyear.com/home_en/tires/runonflat/

Continental say: "SSR tyres may only be fitted to vehicles equipped with
a tyre pressure monitoring system"
http://www.conti-online.com/generator/www/uk/en/continental/portal/general/innovation/ssr_tyres_en.html

Only a few days ago there was discussion on here about asymmetric tyres,
and how using them fitted the wrong way around is dangerous, and liable
for your insurer to refuse a claim. Likewise, I cannot see how this is
any different. If you had an accident, and there was any question over
the state of your tyres contributing to the accident and your insurer
discovered you were using tyres in a method which was contrary to the
manufacturer's requirements, I would expect they would fight the claim.

But, as you say - it's up to you. Same with using asymmetric tyres the
wrong way round. It's up to you.

D
Ads
  #22 (permalink)  
Old August 1st 08, 01:47 PM posted to uk.rec.cars.fuel.lpg,uk.rec.cars.misc,uk.rec.cars.modifications
Burgerman
external usenet poster
 
Posts: 2,652
Default Tyre sealant stuff - which one?

"David Hearn" wrote in message
...
Burgerman wrote:
"David Hearn" wrote in message
...
Burgerman wrote:
"DanB" wrote in message
...
"John" wrote in message
...
I've just had my car converted to dual fuel and now have a 67-litre
LPG tank in the spare wheel well instead of a spare wheel, so can
anyone recommend a good tyre sealant?

Each of the tyres is in really good condition with between 6 and 7mm
tread depth and the rims are alloys - just in case that makes any
difference.

Cheers,


My car never came with a spare, I have 2 cans of Renault 'Tyre Repair
Aerosol" - no idea if it's any good mind you :-)

--
Dan
Clio R27 F1 #65



I stuck a set of these on. Problem solved. No noticible difference in
ride once the pressure was reduced a few psi from stock. Technically
you need tyre pressure monitors too but thats up to you.

No, it's not up to you. They should not be fitted to vehicles which do
not have remote pressure sensors. The reason is, once a puncture has
occurred, they must be treated as a temporary space saver tyre (or
unmatched tyre) - i.e. 50mph/80kph max and only as a get you home type
thing. In the link you sent "you can do 100 miles or so at 50 mph all
the way home safely". Without remote pressure sensors you have no idea
whether you have a puncture, and so could be doing 70mph or whatever.



Wrong. It is up to you. And it was up to me too! And I know all that.
Its easy to tell if ones a bit low just by driving it. I tried it by
letting 10 psi out. Feels horrible.
So I do not need tp sensors. You might but then thats "up to you" isnt
it.


As eTyres says: "The other essential item of safety equipment for a
vehicle with Run-flat tyres is a Tyre Pressure Monitoring System (TPMS).
Run-flat tyres are designed to minimise the difference in ride quality
when a tyre is punctured. This is especially the case with motorway
driving where there is relatively little cornering.



Yep my gran wouldnt notice if you stole the whole wheel. I on the other
hand certainly can, even on the rear. As could most on this group I would
hope...

For this reason it
is difficult to determine that a tyre has lost pressure or is operating
in zero pressure conditions. Should the driver not be aware of a loss of
pressure they may well exceed the safety limits imposed by the
manufacturer. This would eventually cause the tyre to fail. Run-flat
tyres are not indestructible!" http://www.etyres.co.uk/run-flat-tyres

D


As I said your choice!
I can easily tell when 10 psi is missing. And you can run a NON run flat
at 10 psi down on a motorway at 70 with little likelyhood of a problem.
Ask my mum she never checks tyre pressures and they are always half
flat... Now she needs tyre pressure monitors on ordinary tyres. I or
most of this group dont. Just a bit of "feel" and awareness.


Whether you can feel it or not - manufacturers of the tyres say you must
not do this.


Because they dont know if its going to be you, me or my mum driving it.
And they are scared or getting sued.



In fact, Michelin say: "This Self Supporting Tyre (SST) technology should
only be used on vehicles originally designed for this type of tyre. Do not
fit ZP tyres on vehicles not designed for this technology."
http://www.michelin.co.uk/uk/front/affich.jsp?codeRubrique=20060308204909



As above.

Goodyear say: "Since your tires will simply keep going after they've
suffered pressure loss, RunOnFlat technology requires the presence of an
on-board TPMS (Tire Pressure Monitoring System) that lets you know that
your tire requires servicing. Without such a system, you would have no way
of knowing that your tire had suffered a puncture or a blow out."
http://eu.goodyear.com/home_en/tires/runonflat/



Thats untrue. Its easy toi tell. At least for many. If you are my granny
then fine as I said its up to you. The tyre pressure monitors are cheap
anyway. I dont need one.


Continental say: "SSR tyres may only be fitted to vehicles equipped with a
tyre pressure monitoring system"
http://www.conti-online.com/generator/www/uk/en/continental/portal/general/innovation/ssr_tyres_en.html



Of course they do But as I say most people that are "aware" and have a good
sense of "feel" and can tell if you have a flat one easily. But maybe my mum
couldnt.


Only a few days ago there was discussion on here about asymmetric tyres,
and how using them fitted the wrong way around is dangerous, and liable
for your insurer to refuse a claim.



Thats also debatable.
There are many assmetric tyres that are matked outside only. They are not
mirror images. So on one side even when fitted correctly the water clearing
characteristics get reversed! Its mostly "fashion". I and many others have
fitted bike tyres reversed with no problems, many club racers do. Most
tracks wear out the right side first!
http://ssl.delti.com/cgi-bin/rshop.p...igan=So&Achse=

It may wrap but this is a typical example.
These when fitted correctly effectively sift the water inwards on one side
and outwards on the other. They are effectively running reversed on the left
side of the car. So it cant actually make any difference which way you
fit/use them!
They are always wrong anyway...

Likewise, I cannot see how this is
any different. If you had an accident, and there was any question over
the state of your tyres contributing to the accident and your insurer
discovered you were using tyres in a method which was contrary to the
manufacturer's requirements, I would expect they would fight the claim.



That would only stand up in court if the tyre was found to be substantially
under inflated. And that would be true for NON run flat tyres too!



But, as you say - it's up to you. Same with using asymmetric tyres the
wrong way round. It's up to you.

D





  #23 (permalink)  
Old August 1st 08, 03:58 PM posted to uk.rec.cars.fuel.lpg,uk.rec.cars.misc,uk.rec.cars.modifications
DanB
external usenet poster
 
Posts: 1,794
Default Tyre sealant stuff - which one?

"Burgerman" wrote in message
...


Yep my gran wouldnt notice if you stole the whole wheel. I on the other
hand certainly can, even on the rear. As could most on this group I would
hope...


Yea the Vee was very sensitive to tyre pressures, as was the 206. Well,
when I say, very sensitive, I noticed when one was 5 psi out - so whether
that's me or the car, who knows. It was a car I knew very well though.
I've yet to have a tyre lose any noticeable PSI on the R27. I haven't felt
it, and the pressures were actually checked last week and they were all
still 30 to 32 psi.

--
Dan
Clio R27 F1 #65


  #24 (permalink)  
Old August 1st 08, 05:19 PM posted to uk.rec.cars.fuel.lpg,uk.rec.cars.misc,uk.rec.cars.modifications
David Hearn
external usenet poster
 
Posts: 397
Default Tyre sealant stuff - which one?

Burgerman wrote:
"David Hearn" wrote in message
...
Burgerman wrote:
"David Hearn" wrote in message
...
Burgerman wrote:
"DanB" wrote in message
...
"John" wrote in message
...
I've just had my car converted to dual fuel and now have a
67-litre LPG tank in the spare wheel well instead of a spare
wheel, so can anyone recommend a good tyre sealant?

Each of the tyres is in really good condition with between 6 and
7mm tread depth and the rims are alloys - just in case that makes
any difference.

Cheers,


My car never came with a spare, I have 2 cans of Renault 'Tyre
Repair Aerosol" - no idea if it's any good mind you :-)

--
Dan
Clio R27 F1 #65



I stuck a set of these on. Problem solved. No noticible difference
in ride once the pressure was reduced a few psi from stock.
Technically you need tyre pressure monitors too but thats up to you.

No, it's not up to you. They should not be fitted to vehicles which
do not have remote pressure sensors. The reason is, once a puncture
has occurred, they must be treated as a temporary space saver tyre
(or unmatched tyre) - i.e. 50mph/80kph max and only as a get you
home type thing. In the link you sent "you can do 100 miles or so
at 50 mph all the way home safely". Without remote pressure sensors
you have no idea whether you have a puncture, and so could be doing
70mph or whatever.


Wrong. It is up to you. And it was up to me too! And I know all that.
Its easy to tell if ones a bit low just by driving it. I tried it by
letting 10 psi out. Feels horrible.
So I do not need tp sensors. You might but then thats "up to you"
isnt it.


As eTyres says: "The other essential item of safety equipment for a
vehicle with Run-flat tyres is a Tyre Pressure Monitoring System
(TPMS). Run-flat tyres are designed to minimise the difference in
ride quality when a tyre is punctured. This is especially the case
with motorway driving where there is relatively little cornering.


Yep my gran wouldnt notice if you stole the whole wheel. I on the
other hand certainly can, even on the rear. As could most on this
group I would hope...

For this reason it
is difficult to determine that a tyre has lost pressure or is
operating in zero pressure conditions. Should the driver not be
aware of a loss of pressure they may well exceed the safety limits
imposed by the manufacturer. This would eventually cause the tyre to
fail. Run-flat tyres are not indestructible!"
http://www.etyres.co.uk/run-flat-tyres

D

As I said your choice!
I can easily tell when 10 psi is missing. And you can run a NON run
flat at 10 psi down on a motorway at 70 with little likelyhood of a
problem. Ask my mum she never checks tyre pressures and they are
always half flat... Now she needs tyre pressure monitors on ordinary
tyres. I or most of this group dont. Just a bit of "feel" and awareness.


Whether you can feel it or not - manufacturers of the tyres say you
must not do this.


Because they dont know if its going to be you, me or my mum driving it.
And they are scared or getting sued.



In fact, Michelin say: "This Self Supporting Tyre (SST) technology
should only be used on vehicles originally designed for this type of
tyre. Do not fit ZP tyres on vehicles not designed for this technology."
http://www.michelin.co.uk/uk/front/affich.jsp?codeRubrique=20060308204909



As above.

Goodyear say: "Since your tires will simply keep going after they've
suffered pressure loss, RunOnFlat technology requires the presence of
an on-board TPMS (Tire Pressure Monitoring System) that lets you know
that your tire requires servicing. Without such a system, you would
have no way of knowing that your tire had suffered a puncture or a
blow out."
http://eu.goodyear.com/home_en/tires/runonflat/



Thats untrue. Its easy toi tell. At least for many. If you are my granny
then fine as I said its up to you. The tyre pressure monitors are cheap
anyway. I dont need one.


Continental say: "SSR tyres may only be fitted to vehicles equipped
with a tyre pressure monitoring system"
http://www.conti-online.com/generator/www/uk/en/continental/portal/general/innovation/ssr_tyres_en.html



Of course they do But as I say most people that are "aware" and have a
good sense of "feel" and can tell if you have a flat one easily. But
maybe my mum couldnt.


Only a few days ago there was discussion on here about asymmetric
tyres, and how using them fitted the wrong way around is dangerous,
and liable for your insurer to refuse a claim.



Thats also debatable.


Fitting asymmetric tyres incorrectly is an automatic MOT failure, so I'm
not sure how debatable it is.

"f. a tyre not fitted in compliance with the manufacturers sidewall
instruction, eg an asymmetric tyre with a sidewall marked ‘outer’ fitted
with the marking to the inner side of the wheel"
http://www.motuk.co.uk/manual_410.htm

Likewise, I cannot see how this is
any different. If you had an accident, and there was any question
over the state of your tyres contributing to the accident and your
insurer discovered you were using tyres in a method which was contrary
to the manufacturer's requirements, I would expect they would fight
the claim.



That would only stand up in court if the tyre was found to be
substantially under inflated. And that would be true for NON run flat
tyres too!


I know I'd prefer not to be in a position where I have to fight my
insurer in court. Particularly, as any "legal cover" on my insurance
probably doesn't cover me against them!

"You should never retrofit a runflat tyre to a vehicle without a TPMS"
RoSPA http://www.rospa.com/RoadSafety/info/runflat_tyres.pdf

European Tyre and Rim Technical Organisation draft regulations for the
UN: "Moreover it shall be clearly specified by a new statement in
paragraph 5.1 that vehicles can be equipped with a ‘run-flat system’
only if they are also equipped with an effective tyre pressure
monitoring system and a runflat monitoring system."
http://www.unece.org/trans/doc/2003/wp29grrf/TRANS-WP29-GRRF-53-02e.pdf

OICA (International Organisation of Motor Vehicle Manufacturers)
suggested requirement: "If the vehicle is equipped with Run-Flat Tyres,
then a signal warning the driver of the runflat condition is mandatory"
http://www.unece.org/trans/doc/2007/wp29grrf/ECE-TRANS-WP29-GRRF-61-inf10e.pdf


I'm sure that an insurer would claim that it's an undeclared
modification to the vehicle, which if they had been informed of it,
would have refused cover. The specification of the tyres significantly
differ from those which were originally fitted, or recommended for the
vehicle. The tyre manufacturer would side with the insurer in this
instance of fitting run-flat tyres to a vehicle which does not have a
pressure monitoring system (see quote above). I would also expect that
the vehicle manufacturer would also do the same (see quote above from
the OICA). Based on that, I could see they would legitimately say that
you were not covered - particularly if the accident had *any* question
that the tyres could have influenced the ability to stop/avoid.

D
  #25 (permalink)  
Old August 1st 08, 09:10 PM posted to uk.rec.cars.fuel.lpg,uk.rec.cars.misc,uk.rec.cars.modifications
Burgerman
external usenet poster
 
Posts: 2,652
Default Tyre sealant stuff - which one?

"David Hearn" wrote in message
...
Burgerman wrote:
"David Hearn" wrote in message
...
Burgerman wrote:
"David Hearn" wrote in message
...
Burgerman wrote:
"DanB" wrote in message
...
"John" wrote in message
...
I've just had my car converted to dual fuel and now have a 67-litre
LPG tank in the spare wheel well instead of a spare wheel, so can
anyone recommend a good tyre sealant?

Each of the tyres is in really good condition with between 6 and
7mm tread depth and the rims are alloys - just in case that makes
any difference.

Cheers,


My car never came with a spare, I have 2 cans of Renault 'Tyre
Repair Aerosol" - no idea if it's any good mind you :-)

--
Dan
Clio R27 F1 #65



I stuck a set of these on. Problem solved. No noticible difference in
ride once the pressure was reduced a few psi from stock. Technically
you need tyre pressure monitors too but thats up to you.

No, it's not up to you. They should not be fitted to vehicles which
do not have remote pressure sensors. The reason is, once a puncture
has occurred, they must be treated as a temporary space saver tyre (or
unmatched tyre) - i.e. 50mph/80kph max and only as a get you home type
thing. In the link you sent "you can do 100 miles or so at 50 mph all
the way home safely". Without remote pressure sensors you have no
idea whether you have a puncture, and so could be doing 70mph or
whatever.


Wrong. It is up to you. And it was up to me too! And I know all that.
Its easy to tell if ones a bit low just by driving it. I tried it by
letting 10 psi out. Feels horrible.
So I do not need tp sensors. You might but then thats "up to you" isnt
it.


As eTyres says: "The other essential item of safety equipment for a
vehicle with Run-flat tyres is a Tyre Pressure Monitoring System
(TPMS). Run-flat tyres are designed to minimise the difference in ride
quality when a tyre is punctured. This is especially the case with
motorway driving where there is relatively little cornering.


Yep my gran wouldnt notice if you stole the whole wheel. I on the other
hand certainly can, even on the rear. As could most on this group I
would hope...

For this reason it
is difficult to determine that a tyre has lost pressure or is
operating in zero pressure conditions. Should the driver not be aware
of a loss of pressure they may well exceed the safety limits imposed
by the manufacturer. This would eventually cause the tyre to fail.
Run-flat tyres are not indestructible!"
http://www.etyres.co.uk/run-flat-tyres

D

As I said your choice!
I can easily tell when 10 psi is missing. And you can run a NON run
flat at 10 psi down on a motorway at 70 with little likelyhood of a
problem. Ask my mum she never checks tyre pressures and they are always
half flat... Now she needs tyre pressure monitors on ordinary tyres. I
or most of this group dont. Just a bit of "feel" and awareness.

Whether you can feel it or not - manufacturers of the tyres say you must
not do this.


Because they dont know if its going to be you, me or my mum driving it.
And they are scared or getting sued.



In fact, Michelin say: "This Self Supporting Tyre (SST) technology
should only be used on vehicles originally designed for this type of
tyre. Do not fit ZP tyres on vehicles not designed for this technology."
http://www.michelin.co.uk/uk/front/affich.jsp?codeRubrique=20060308204909



As above.

Goodyear say: "Since your tires will simply keep going after they've
suffered pressure loss, RunOnFlat technology requires the presence of an
on-board TPMS (Tire Pressure Monitoring System) that lets you know that
your tire requires servicing. Without such a system, you would have no
way of knowing that your tire had suffered a puncture or a blow out."
http://eu.goodyear.com/home_en/tires/runonflat/



Thats untrue. Its easy toi tell. At least for many. If you are my granny
then fine as I said its up to you. The tyre pressure monitors are cheap
anyway. I dont need one.


Continental say: "SSR tyres may only be fitted to vehicles equipped with
a tyre pressure monitoring system"
http://www.conti-online.com/generator/www/uk/en/continental/portal/general/innovation/ssr_tyres_en.html



Of course they do But as I say most people that are "aware" and have a
good sense of "feel" and can tell if you have a flat one easily. But
maybe my mum couldnt.


Only a few days ago there was discussion on here about asymmetric tyres,
and how using them fitted the wrong way around is dangerous, and liable
for your insurer to refuse a claim.



Thats also debatable.


Fitting asymmetric tyres incorrectly is an automatic MOT failure, so I'm
not sure how debatable it is.



That may be so. But its rediculous since the tyres are not handed. So if you
fit them correctly with the outside to the outside then they only work
correctly in reverse on the left!

Rules make no sense.


"f. a tyre not fitted in compliance with the manufacturers sidewall
instruction, eg an asymmetric tyre with a sidewall marked ‘outer’ fitted
with the marking to the inner side of the wheel"
http://www.motuk.co.uk/manual_410.htm



Yes but then you have to drive in reverse to clear water properly!


Likewise, I cannot see how this is
any different. If you had an accident, and there was any question over
the state of your tyres contributing to the accident and your insurer
discovered you were using tyres in a method which was contrary to the
manufacturer's requirements, I would expect they would fight the claim.



That would only stand up in court if the tyre was found to be
substantially under inflated. And that would be true for NON run flat
tyres too!


I know I'd prefer not to be in a position where I have to fight my insurer
in court. Particularly, as any "legal cover" on my insurance probably
doesn't cover me against them!



Well as I already said its your choice. I dont need safety nazis to tell me
when a tyre is flat.

"You should never retrofit a runflat tyre to a vehicle without a TPMS"
RoSPA http://www.rospa.com/RoadSafety/info/runflat_tyres.pdf



Good advice but thats all it is. You choose to fit tyre pressure monitors if
you wish!


European Tyre and Rim Technical Organisation draft regulations for the UN:
"Moreover it shall be clearly specified by a new statement in paragraph
5.1 that vehicles can be equipped with a ‘run-flat system’ only if they
are also equipped with an effective tyre pressure monitoring system and a
runflat monitoring system."
http://www.unece.org/trans/doc/2003/wp29grrf/TRANS-WP29-GRRF-53-02e.pdf

OICA (International Organisation of Motor Vehicle Manufacturers) suggested
requirement: "If the vehicle is equipped with Run-Flat Tyres, then a
signal warning the driver of the runflat condition is mandatory"
http://www.unece.org/trans/doc/2007/wp29grrf/ECE-TRANS-WP29-GRRF-61-inf10e.pdf


I'm sure that an insurer would claim that it's an undeclared modification
to the vehicle, which if they had been informed of it, would have refused
cover. The specification of the tyres significantly differ from those
which were originally fitted, or recommended for the vehicle.


Mine do anyway! They are 4 inches wider... And bigger diameter. And the
suspension is modded.



The tyre manufacturer would side with the insurer in this
instance of fitting run-flat tyres to a vehicle which does not have a
pressure monitoring system (see quote above).



As long as the tyre was not under inflated by a serious margin then there is
no reason that insurance would be invalid.
Just the same as a non run flat tyre.
And my tyre pressures are chosen by me anyway.
Stock pressures are way too low foer the lower profile tyres I use and the
tyre edges wear fast.
The correct tyre pressure is one that satisfies a bunch of difficult and
sometimes opposing requirements.
These include comfort, (espesially for me as I have a spinal injury and
drive from a wheelchair) Where harder is noisier and jolts more on bumps and
may offer less grip.
Load, including the number of occupants (you do change your tyre pressures
when you have a full car dont you? You TPMS wont help you here.
Stability, where lower or higher pressures are used to help prevent or
induce understeer or oversteer.
Tyre wear pattern, Where under inflated wears the edges and over inflated
wears the centre.
Economy where more is better and less pressure worse.
Temperature build up and usage and road type. More pressure is better here
which is why car manufacturers advise higher pressures on motorways and when
fully loaded.
Noise, lower is better for removing bump noise. Higher better for removing
external noise.
In winter I always choose about 15 percent less pressure on purpose. Its
safer and gives more grip on salty and cold/snow etc. High temperatures on a
hot motorway obviously are not an issue.
Etc etc. The manufacturers guide pressure is just that. For stock tyres only
as well.
My own tyres have a higher load rating too so could actually be safely used
at a lower pressure than stock.

Each driver should be aware of a few psi change quite easily. I knowe I am.
And it allows me to reach a compromise in my own pressures. A TPMS wont help
here. I can detect pressure changes way before these broad range devices
"warn you" and there no requirement for them in law.
There isnt any such thing as a "correct" pressure as such. Especially when
you consider that my wheels and tyres are not the stock OEM size by a large
margin. And when you consider that a "one size fits all" tyre pressure
monitor system often doesent even have any adjustment! It just warns when
seriously low. Whatever pressure that might be. I would already have noticed
and topped them up to where I prefer by then.


I would also expect that
the vehicle manufacturer would also do the same (see quote above from the
OICA). Based on that, I could see they would legitimately say that you
were not covered - particularly if the accident had *any* question that
the tyres could have influenced the ability to stop/avoid.



Rubbish.
If they were underinflated by a marked amount then possibly. But that also
applies (if not more!) to a non run flat! And of course driving on a
completely flat runflat tyre isnt very pleasant but it is both obvious and
ALLOWED by law by definition!

I tried letting all the air out of a front, and then a rear. You cant really
miss it! It feels flat... It wallows, and if on a front it also drags the
steering... You would need to be massively ignorant to not notice.

But by alkl means get a TPMS if you want. I dont need one.

  #26 (permalink)  
Old August 19th 08, 03:53 AM posted to uk.rec.cars.fuel.lpg,uk.rec.cars.misc,uk.rec.cars.modifications
Grimly Curmudgeon
external usenet poster
 
Posts: 582
Default Tyre sealant stuff - which one?

We were somewhere around Barstow, on the edge of the desert, when the
drugs began to take hold. I remember "Depresion" 127.0.0.1 saying
something like:


"John" wrote in message
...

I'd heard that Tyreweld makes a mess of the rims (in respect of fitting a
new tyre) and tyre fitters moan and complain about it - is that correct?


Yes, they will also normally refuse to repair the tyre as a result.


Aye, but they're full of ****.
--

Dave
SE6a
 




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