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Discussion Starter · #1 ·
Hi,

Is there anyone close to Oxford (or within an hour or so's drive) that's got a set of Foz wheels / with quiet tyres that I can try up and down the road a few times as I'm on a mission to make mine quieter - I've already done some soundproofing / rubber seal mods but I still find the road noise annoying...

Ideally I'd like to try some 'known' quiet tyres before I splash out on swapping out my nearly new Geolandar SUV's (71dB according to the datasheet) - the quietest summer tyres in standard sizes are 68dB which is supposed to be half as loud... Currently it's got standard XT 17's on it, with 215/55 R17s, not sure if 16s will clear standard XT brakes or not?

There's a beer and/or pub lunch in it as a bribe :D

Cheers

Jon
 

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2000 S-Turbo Manual
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The data ratings don't always tell you how the tyres perform IRL - they are a measure of noise heard outside the car, not what is heard in the cabin.
 

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From my experience all Subaru's suffer from road noise. My Z Lines were really noisey when worn but quiet when new. My current Sottozero winter tyres are much quieter.
 

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2015 XT CVT.....sadly !
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Have to agree with James on this. If you want less road noise, move away from Subaru and don't waste too much time trying to silence the unsilenceable
 

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2011 Forester XS TD MT6
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3dB in terms of physics means there is half the sound pressure. 3dB is also the smallest difference a human ear can reportedly recognize...

I looked into some cabin measurements for SUVs, and most of them are very close to each other. However noise is subjective, because different frequencies etc. can make a big difference. In our test driving all the gasoline foresters seemed noisy while we liked all the diesels! I think tires can make a difference - to really know you'd need to make head-to-head comparison of the particular makes.
 

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Tyre pressures also make a big difference to cabin noise. The snag is if you go lower pressure your fuel economy suffers at the gain of comfort.
 

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Discussion Starter · #9 ·
Bump - still after a set of 'quiet' tyres (or a ride in another SG foz!) to see if my tyres are particularly noisy or not.

The salesguy at the dealer commented that mine sounded noisy earlier today, just after a reference to compare it to...
 

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I changed from Nokian zLine (or some other Z?) to Vredestein Ultrac Cento (215/55/17) on my old Merc c200. Man what a difference! Will probably do something similar with summertyres on my Foz, most likely Dunlop Sport BluResponses.

There is much to be gained!

I started with buying new speakers though :)
 

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Rotate your wheels around the car at least every 5k. This wears the tyres more evenly and prevents stepped tread which thens makes a hum/vibration.

My sottozeros are beginning to get noisy so it's a case of fronts to rear opposite side and rears to front same side.
 
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