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Old Oct 30, 2003 | 09:09 AM
  #1  
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Question PSI Debate

I was wondering what everyone runs their tires at on their expy.'s Also, what are the reasons for the certain psi levels that you run at? Thanks. I run mine at 30 psi in the front and 35 psi in the rear according to Ford specs., but am wondering if filling the front more would hurt? Thanks.
 
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Old Oct 30, 2003 | 09:18 AM
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35 front & back. Funny how Ford has changed their specs on the '03's w/Conti's. Manual and sticker on fuel door says 35 front & back.
 
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Old Oct 30, 2003 | 09:52 AM
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I run 35 all the way around. Calls for 30F35R. It's not as finicky as 20/20 and Dateline NBC want you to think.

I was running the rear at 40, but it was a little rough, so I backed it down.

XXL
 
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Old Oct 30, 2003 | 10:03 AM
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35/35

It feels sluggish when it gets to around 30
 
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Old Oct 30, 2003 | 11:01 AM
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Too twitchy at 35/35 for me. 30F/35R.
 
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Old Oct 30, 2003 | 11:20 AM
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35 on all 4 corners. Felt too mushy otherwise.

Amazing what a couple of pounds can do for your MPG too.
 
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Old Oct 30, 2003 | 11:30 AM
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Thirty five for me all the way around. Feels mushy with anything less. My mom's husband just squeezed 70k out of a set of Firestones with 40 PSI on their Navi (go figure).

Eric
 
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Old Oct 30, 2003 | 12:19 PM
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I was thinking about trying 40psi out, probably will once I get my expy back from the dealer (6k in repairs/fixes in 2 months!!! extended warranties are a good idea)
 
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Old Oct 30, 2003 | 12:24 PM
  #9  
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Here is a thought:

Will the increase in psi on the front wear the tire prematurely? I have been thinking about running 35 in the front, but have not yet because I am worried about tire wear. Does the AWD have anything to do withtire in the front?
 
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Old Oct 30, 2003 | 02:34 PM
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40 psi on all tires. The tire max rating is 44 psi. My gas mileage seems to be a little better than most I've seen posted. Tires get rotated every 6k. The ride is good even with Continentals. The roads here are excellent or I would probably use less pressure for comfort.
 
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Old Oct 30, 2003 | 06:53 PM
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Originally posted by who1975
Here is a thought:

Will the increase in psi on the front wear the tire prematurely? I have been thinking about running 35 in the front, but have not yet because I am worried about tire wear. Does the AWD have anything to do withtire in the front?
you'll be fine. The only way it's going to wear funky is if you overinflate them enough to cause the center to bulge outward (around 60+PSI)

I've been running 35 in the front for the past two years and my tires are wearing right-on.

The AWD system distributes power up front when the rear wheels are slipping. The front PSI won't affect the system.

XXL
 

Last edited by BigMattXXL; Oct 30, 2003 at 06:55 PM.
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Old Oct 30, 2003 | 07:13 PM
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The AWD system distributes power up front when the rear wheels are slipping. The front PSI won't affect the system.
XXL [/B]
Matt and who1975, you both mention AWD. I just posted in another thread that I didn't realize some of these vehicles had AWD. I though they all had A4WD.....at least the 1999+ model vehicles. Do y'all have AWD?


As far as tire pressure goes, I run 35 all around (at least when I check and add to the pressure every few months), but I have Load Range D LT tires that thrive on more air.
 
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Old Oct 30, 2003 | 07:39 PM
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Buzzard-

You are right. What I meant to ask was about the A4wd. I have the 99 expy that has just A4wd, 4hi and 4lo. I think I am going to try the 35 up front based on BigMatt's and everyone else's recommendation. Thanks.
 
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