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Pastimes : Auto Repair & Maintenance Tip -- Ignore unavailable to you. Want to Upgrade?

To: Jon Khymn who wrote (1)	10/31/1999 10:59:00 PM
From: Tom Clarke	Read Replies (1) \| Respond to of 134

Is this thread gonna be like the Car Guys? Tom and Ray Malliatzi (sp?) will be hard to top.

To: Jon Khymn who wrote (1)	10/31/1999 11:13:00 PM
From: thomas richard smith	Read Replies (1) \| Respond to of 134

I dont know the specifics of that tire , but the proper inflation should be written on the tire as well as somewhere on some door pillar. If not just call the dealer that sold you the tires. 44 psi seems too high but that doesnt seem like any good reason to lose so much pressure over a short time. My guess is that about 35 would be close. I dont think that you should lose pressure so fast though, one complication that you may be experiencing, if there was a very large temperature differential between the time of the original pressure reading and a cold reading today, that may cause a decrease in the pressure but I dont think that it would be that much. See your tire dealer asap. Tom

To: Jon Khymn who wrote (1)	11/1/1999 5:45:00 PM
From: SI Bob	Read Replies (3) \| Respond to of 134

New site posting test: We bought a Honda minivan two months ago. We upgraded the tires to wide body with 44 PSI. That's an awful lot of pressure for a car tire. That's the exact pressure I use in the right front on my Mustang for road course use. And that's a racing tire, at that. My truck uses 90, but I'm more accustomed to seeing mid 30's for a passenger car tire. I don't know what low-profile tires usually take (is that what you're using?) but it would seem reasonable to expect higher pressure in those to help keep the rims off the ground. I checked the air pressure today and all 4 tires were only at mid 20s psi. Most likely way too low. If they were all at 44 at some point and are all now 20, it's most likely due to a temperature change. If your tires are at 44 immediately after some spirited driving on a hot day, they could conceivably show mid 20's on a cold day before the car's been driven. Especially, I would think, a low-profile tire, which doesn't hold much air to begin with, comparatively speaking. I always just inflate them to the maximum shown on the sidewalls. But it's got to be done cold. Hot temps are very unreliable. A tire that's underinflated will run much hotter than a properly inflated tire (more tire flexing equals more heat equals higher pressure) and can actually show a higher pressure when hot than a correctly inflated tire will. Kinda worried if I put too much air... Personally, I worry about underinflation more, although severe overinflation can cause problems, too.