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The contact5 is what my tyre guy recommended.I find that my tyres are at their quietest when completely stationary.Is this normal?
Very good information Alan, thanks for publishing it. Road surface has a lot to do with tyre noise too. In Australia we have a lot of concrete surface roads with the expansion strips/gaps due to our extreme temperatures, they are not nice to drive on. Concrete roads have a life span of some 50 years so that form of construction is attractive to authorities. Some of our 110 km/h freeways, like the Hume Fwy, Sydney-Melbourne have a lot of concrete sections.
Quote from: Lester on September 21, 2013, 08:19:47Very good information Alan, thanks for publishing it. Road surface has a lot to do with tyre noise too. In Australia we have a lot of concrete surface roads with the expansion strips/gaps due to our extreme temperatures, they are not nice to drive on. Concrete roads have a life span of some 50 years so that form of construction is attractive to authorities. Some of our 110 km/h freeways, like the Hume Fwy, Sydney-Melbourne have a lot of concrete sections. And extensve testing of truck tyres on the Hume Highway indicates at least 10% WORSE wear on that higway (due to all the concrete) than on other highways.So, as with everything to do with tyres (and cars), it's all about compromise.Concrete roads, as you say, last much, much longer with minimal maintenance, but the trade off is all those extra barrells of oil used to make up the extra 10% of lost tyre life.
Alan as usual...Just as a side note my Hybrid comes with Michelin Primacy LC 215/60 R16 95V as standard and it is one of the quietest cars on the road under $100,000. But obviously the tyres can only take part of the credit for that
I cannot find a source for that Michelin Tyre in the UK. It seems to have been superceded by the name "Energy Saver" which appears to have the same tread pattern as your tyre.The Euro labelling for the Energy Saver tyre is :- C for energy saving (on a scale A (best) to G).B for wet grip (on a scale A (best) to G).70dB for road noise. (External noise on drive-by)The Dunlop tyre has Euro labelling of B, A and 68dB respectively.If these figures are to be believed the Dunlop tyre would have almost half the noise compared with the Michelin (a 3dB change in noise level equals half/double the perceived noise) with better energy saving and better wet grip.I dooon'ttt beliiieeeve iiittt.
Yay for the "bookmark" function
A pain in the arse!
Quote from: AlanHo on September 21, 2013, 13:18:56I cannot find a source for that Michelin Tyre in the UK. It seems to have been superceded by the name "Energy Saver" which appears to have the same tread pattern as your tyre.The Euro labelling for the Energy Saver tyre is :- C for energy saving (on a scale A (best) to G).B for wet grip (on a scale A (best) to G).70dB for road noise. (External noise on drive-by)The Dunlop tyre has Euro labelling of B, A and 68dB respectively.If these figures are to be believed the Dunlop tyre would have almost half the noise compared with the Michelin (a 3dB change in noise level equals half/double the perceived noise) with better energy saving and better wet grip.I dooon'ttt beliiieeeve iiittt.I am half way to wearing the Michelins out.. I hope I can find this thread when it is time to replace them late next year...
Took it to a tyre place and they said couldn't find the leak. ..
Took it to a tyre place and they said couldn't find the leak. Yep, may be worth trying another. thanks.