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Thread: Tyre efficiency rating - is this BS?

  1. #33
    Gold Member Marcos's Avatar
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    Re: Tyre efficiency rating - is this BS?

    What kind of regulation is there out there anyway? I mean, any garage can sell anyone a car with the worst budget tyres and no one is going to stop or even slap their wrist for it.

  2. #34
    Banhammer in peace PeterB kalniel's Avatar
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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by Marcos View Post
    What kind of regulation is there out there anyway? I mean, any garage can sell anyone a car with the worst budget tyres and no one is going to stop or even slap their wrist for it.
    Well I presume that's what the EU tyre rating is for - that's mandatory, and while nothing like perfect, it's a start.

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    HEXUS.timelord. Zak33's Avatar
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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by Butuz View Post
    Sorry - but understeer in not recoverable. When you're understeering, you have truly lost control. Not safer for the person you're about to hit with no chance of deviation or stopping.

    Butuz
    however... it's still best to have the new good tyres on the rear even on a FWD car

    according to tyre manufacturers anyway

    Quote Originally Posted by Advice Trinity by Knoxville
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    HEXUS.timelord. Zak33's Avatar
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    Re: Tyre efficiency rating - is this BS?

    the wet weather rating system is... touch n go.

    I have two sets of all seasons at the moment, and the better rated wet weather tyre, while great stopping in a straight line in the rain, utterly loses the plot in deep water on corners at high speeds

    the lower rated ones are uniformly the same for both straight line and cornering.

    Quote Originally Posted by Advice Trinity by Knoxville
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    Re: Tyre efficiency rating - is this BS?


  6. #38
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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by Zak33 View Post
    however... it's still best to have the new good tyres on the rear even on a FWD car

    according to tyre manufacturers anyway
    http://www.tirerack.com/tires/tirete....jsp?techid=52

    Interesting, alright, it goes against some logic but I kinda get it.

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    Re: Tyre efficiency rating - is this BS?

    I think its BS.

    I had some Mohawks on my car front and back. They lasted for ages and got 40MPG out of my car (Ford fiesta 1.6 petrol Mk6.5). I skidded out last winter in them a few times with poor weather ratings. was very lucky not to crash! decided to go for some Continental Sportcontact5? or 3. cannot remember but they were rated high but not as good on fuel. but im still getting 40mpg and i feel a ton safer

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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by kalniel View Post
    Michelin Pilot Sport 3 - poor fuel economy, fantastic in the dry, very good in the wet, bad in the snow. Great feel in warm conditions. Relatively poor wear rate.
    I'm running PS3s now (well actually dunlop wintersports right now) and thought their wear rating was pretty good; I get around 25k out of a set of 4 which is pretty good in my book. Only other tyres I've run were the PZeros that came with the car which were significantly worse in terms of grip and feedback. Agreed about the snow though, PS3s are frankly scary in snow at times (hence the winter tyres).

  9. #41
    Banhammer in peace PeterB kalniel's Avatar
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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by Butcher View Post
    I'm running PS3s now (well actually dunlop wintersports right now) and thought their wear rating was pretty good; I get around 25k out of a set of 4 which is pretty good in my book.
    It's certainly not a shocking wear rate, but just not as good as I get with other tyres. Two factors could have been the cause for me:

    1) They came with less tread in the first place - I don't know if that is normal for PS3s verses some other types of tyre, but where Vredestein, Goodyear etc. came with a good 7mm or so, the PS3s were around 5.5-6 new. They also didn't have many of the usual mold studs, so I was initially concerned I'd been supplied with (lightly) used tyres, but having read around I think Michellin just to a bit more prep work on PS3s rather than giving them to you straight from the mold, so you don't have the usual 500 miles of grease to run through.

    2) They were so grippy I put more load into them than I do other tyres. They did like roundabouts...

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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by Butuz View Post
    Sorry - but understeer in not recoverable. When you're understeering, you have truly lost control. Not safer for the person you're about to hit with no chance of deviation or stopping.

    Butuz
    Understeer is recoverable, first thing to figure out is what's causing it. Generally you get the car back under control by slowing down. Understeer is more predictable than oversteer.

  11. #43
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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by Schern View Post
    Understeer is recoverable, first thing to figure out is what's causing it. Generally you get the car back under control by slowing down. Understeer is more predictable than oversteer.
    Indeed, I think there is good reason that most cars are set up for mild understeer rather than being properly balanced. The average driver can naturally cope with understeer, but most people have to be taught how to cope with oversteer. For people my age and older who grew up with cheap RWD cars oversteer is quite usual, but I think the number of BMWs I see pointing the wrong way in a ditch (is there a right way to be pointing in a ditch?) shows it is a declining skill even with all the modern electronic aids being deployed.

  12. #44
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    Re: Tyre efficiency rating - is this BS?

    Spun out the other pratting around on a roundabout, it was raining heavy so thought I'd give it a go. Can't remember if I tried a bit of handbrake. Anyway, still waiting on new tyres so will report back

    Comfort has gone right down now though, amazing that a few mm of tread absorbs so much bad road.

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    Re: Tyre efficiency rating - is this BS?

    Thought comfort was down to the walls of the tyre not the tread.

    Have you checked your shock absorbers? That would degrade ride quality and make you likely to step out on a roundabout.

    Seems odd in this weather that you could need more dampening

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    Re: Tyre efficiency rating - is this BS?

    Yeah side wall stiffness and tyre pressure would be more important. Tread depth is more important for clearing water.

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    Re: Tyre efficiency rating - is this BS?

    Quote Originally Posted by kalniel View Post
    1) They came with less tread in the first place - I don't know if that is normal for PS3s verses some other types of tyre, but where Vredestein, Goodyear etc. came with a good 7mm or so, the PS3s were around 5.5-6 new. They also didn't have many of the usual mold studs, so I was initially concerned I'd been supplied with (lightly) used tyres, but having read around I think Michellin just to a bit more prep work on PS3s rather than giving them to you straight from the mold, so you don't have the usual 500 miles of grease to run through.

    2) They were so grippy I put more load into them than I do other tyres. They did like roundabouts...
    Mine came with between 7 and 8 mm tread, both times... My current set have done about 10k and are only just below 5 mm now. They are fun to drive on though.

  16. #48
    Banhammer in peace PeterB kalniel's Avatar
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    Re: Tyre efficiency rating - is this BS?

    Right, I'll try a different supplier next time

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