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Discussion Starter · #1 ·
I know some here are acutely aware of how tire pressure can affect our ride with 4C but I just wanted to post a reminder. I've noticed with running all seasons that the 4C is much more sensitive to pressures than with summer tires.<p>Recently I noticed some horrible ride quality and checked my cold pressures to find 33 psi. You wouldn't think that would be that bad. But going back to 38 psi cold made a big difference, no more crashing over slight irregularities.<p>Overall, I still think 4C has poor ride compliance, but proper pressures makes it tolerable enough to forget about. Until I drive the bimmer again that is.
 

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Re: reminder- run the right tire pressure! (Needsdecaf)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Needsdecaf</b> »</i></TD></TR><TR><TD CLASS="quote">38 psi is on the high side. What tires are you running? </TD></TR></TABLE><p>39 is recommended I believe.
 

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Discussion Starter · #4 ·
Re: reminder- run the right tire pressure! (Needsdecaf)

I really haven't calibrated it enough to know what is best. All I know is 38 is way better than 33. Way better.<p>GY F1 A/S right now. Been too lazy to throw the summers back on.
 

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Re: reminder- run the right tire pressure! (petew)

OMFG......petew didn't ream him for the all season tires. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/eek.gif" BORDER="0">
 

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Re: reminder- run the right tire pressure! (petew)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>petew</b> »</i></TD></TR><TR><TD CLASS="quote">BMW is the perfect car for you <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0"> </TD></TR></TABLE><p>I was thinking Camry. <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0">
 

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Re: reminder- run the right tire pressure! (Husker Z)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>Husker Z</b> »</i></TD></TR><TR><TD CLASS="quote"><p>39 is recommended I believe.</TD></TR></TABLE><p>Optional, loaded.
 

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Re: reminder- run the right tire pressure! (Needsdecaf)

Maybe it's the way I drive, but 39 front, 35 rear for my V is perfect for my tires. The wear's even across side to side and the ride & grip are as I like it. <p>Mileage stinks no matter what pressure I run, and I can't imagine going higher than 39psi anyway. Must be the way I drive. Only time I've seen >18mpg is after a long trip to DC. Sure was a comfy ride except for them nasty roads around NYC. No sidewall bubbles, ever.
 

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Re: reminder- run the right tire pressure! (blinky)

I run 39 and like it.
 

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Re: reminder- run the right tire pressure! (kenhoeve)

<br>With Michelin PS2s 35 or 36 psig worked well with my VR - stock suspension. Now with track spec sways and Michelin PS A/S Plus, 37 psig gives a good ride and handling is great. The ride is sooo much better with the track spec sways, and the crash from hell when hitting bumps is greatly reduced. Tire wear has been very even in the 35-37 range with both summer and A/S tires. I never use the 4C - just keep it in Sport all the time with the S button engaged.
 

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Discussion Starter · #11 ·
Re: reminder- run the right tire pressure! (petew)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD><i>Quote, originally posted by <b>petew</b> »</i></TD></TR><TR><TD CLASS="quote"><p>there is a reason volvo didn't sell the car with "all season" tires.<p>the reason is -- the car was not built for those who don't even own a tire gague, and if they did, never even bothered to look for the factory recommended tire pressure placard (on every car , duh!)<p>sell the car<p>BMW is the perfect car for you <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/tongue.gif" BORDER="0"> </TD></TR></TABLE><p>lol. my liquid filled gauge is a bit dated. and you may be right about the bmw, but they still don't make a wagon that compares so it will have to do.<p>36-37 did seem to be the sweet spot for GY F1 gs-d3.
 

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I run 36 in my ContiExtremeContacts and its beautiful. Milage is great too. I get up to 34 MPG highway (according to the car so more like 30-32) and 22 ish MPG city. <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0"> <p>200th post w00t! Big money!
 

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Re: (Rho)

My psi was about 35-36 at my last oil change at the dealership and they reduced it down to 32 all the way around. I should have asked them why did they do that but I was in a hurry to leave.
 

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Re: (pie_ya)

Toyo Versado LX - 40 psi all around.
 

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Re: reminder- run the right tire pressure! (kenhoeve)

40.5psi fronts<br>36psi rears<br>Pirelli PZero Rosso 95y <IMG NAME="icon" SRC="http://********************/smile/emthup.gif" BORDER="0">
 

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41 front, 40 rear - General UHPs
 
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