Car tyres, interesting article.

[gavroche]

The tyre on my wheel barrow must be at least 10 years old but still plenty of tread left on it although it only does very short , slow runs.

 

[gbb]

They recommend that the caravan tyres are changed every 5 years due to ageing, most caravans do very low mileage.

I used to have a rather old but good condition camper trailer years ago...one trip I took it on, despite the tyres looking generally good, one blew out at 50mph ish. No drama, I left a trail of smoke and chunks of rubber for a couple hundred yards, but managed to crawl to a garage.

Tyres looked ok, but were old no doubt. Good advice.

 

[screenman]

[QUOTE 4676477, member: 9609"]have you ever heard of MOT rejecting tyres over a certain age. my van tyres are june 07 (which is a year older than the van) and still have plenty life in them[/QUOTE]


Not for age, but certainly for cracking.

 

[Drago]

They might have loads of tread, but in terms of their grip performance they're well past their best. A lot of noises recently about making tyre age part of the MOT. A rough guide for safe tyre age is 6 years since first use, or 10 years from manufacture.

 

[gbb]

On a slightly different tack, tyres can make a significant difference to your fuel economy.

My former Astra regularly achieved 50mpg. I was due some tyres and i deliberately chose a specific tyre with a good economy rating. Sadly, they put Cinturato P7s on instead of P7s with another designation, two outwardly the same but with slight differences. I didn't notice at the time...but never achieved 50mpg again, it was always 46, 47 mpg ish. Annoyed the heck out of me.

 

[Drago]

The maths make sense, but are flawed. As a tyre wears, the rate at which they wear increases. They also cease to tread water at about 3mm, and that is the point they need replacing. By the time you get to the legal limit you'll have been driving on ineffective tyres for a fair while.

 

[subaqua]

The maths make sense, but are flawed. As a tyre wears, the rate at which they wear increases. They also cease to tread water at about 3mm, and that is the point they need replacing. By the time you get to the legal limit you'll have been driving on ineffective tyres for a fair while.

Which is why I replace at 3mm . 78% worn .

 

[simon.r]

The maths make sense, but are flawed. As a tyre wears, the rate at which they wear increases. They also cease to tread water at about 3mm, and that is the point they need replacing. By the time you get to the legal limit you'll have been driving on ineffective tyres for a fair while.

Which is why I replace at 3mm . 78% worn .

Some years ago I had a Toyota Verso company car which seemed to be particularly affected by worn tyres. I was very close to paying for new tyres out of my own pocket, when they were at about 3mm (the lease company wouldn't replace them until they were on the legal limit). Eventually I found a "friendly" tyre garage that persuaded the lease company the tyres needed changing.

 

[Milzy]

[QUOTE 4676534, member: 9609"]A newer tyre will have a slightly bigger diameter so your apparent mpg will go down, you always need to calibrate your milometer with known a known journey distance.

lets take a tyre size of 185/50R17 ie radius should be about 308.4 mm when worn out radius 301.4 therefor mileometer would be 2.3% out therefor new to old mpg could go from 48mpg to 49.1mpg.

also since there can be a bit of a differance (up to 5% I think) between different batches your lower mpg could well just be down to inaccuracies in your mileometer due to different tyres having different diameters.[/QUOTE]
He's right you know.

 

[Tin Pot]

Police tend to give a vehicle defect rectification notice for most construction and use offences. Stops everybody saying they could better spend their time catching rapists and murderers.

What's a construction and use offence?

 

[Moodyman]

The tyre on my wheel barrow must be at least 10 years old but still plenty of tread left on it although it only does very short , slow runs.

Yebbut, does it pass its annual MOT.

 

[mustang1]

When I bought my Mustang out.

I'm just gonna add my username here.

 

[mustang1]

The tyre on my wheel barrow must be at least 10 years old but still plenty of tread left on it although it only does very short , slow runs.

Podgy driver?

 

[Levo-Lon]

I worked in a tyre fitting bay as a young man...scary what people drive on.
Most just don't care or don't know....or simply can't afford new ones.

The growth in used tyre sales outlets is also very worrying. ..

 

[Salty seadog]

I had a puncture on my 15 tear old Corolla the other week. I did think about the state of the spare (material degradation) which has been the same all that time.