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   rec.autos.tech      Technical aspects of automobiles, et. al      117,728 messages   

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   Message 115,789 of 117,728   
   Arlen Holder to In response to what   
   Re: Suuggestion For Passenger & LT Tire    
   14 May 20 09:00:51   
   
   From: arlenholder@any1example.com   
      
   In response to what  wrote :   
      
   > Leave the "Max. Cold Pressure" figure OFF the tire sidewalls period, since   
   more than half of   
   > drivers, vehicle owners, and even supposedly "ASE Certified" mechanics first   
   look there for   
   > what to adjust tire pressures to. Not kidding, leave it off!   
   >   
   > Instead, next to the maximum load weight in pounds & kg, inscribe: 'REFER TO   
   VEHICLE   
   > MANUFACTURER TIRE PLACARD OR LITERATURE FOR APPROPRIATE COLD TIRE   
   > PRESSURES' on the tire sidewall, so as to remove any doubt.   
   >   
   > The bursting inflation on tires made since the '90s is probably 50-100psi   
   above any pressure   
   > the car makers are likely to specify anyway, so why list a Max. Cold number,   
   since it's not   
   > near the bursting pressure anyway.   
      
   On the topic of where to put the maximum cold pressure...   
      
   When I fill a tire on a passenger vehicle, I read the placard on the door   
   jamb, and then I usually pick a number I want, where I don't necessarily   
   follow the placard if it's not "high enough" for me.   
      
   What I mean by that is I use my own judgement based on the _range_ in the   
   placard, which I never take as gospel.   
      
   As an example, on a bimmer, they specify different values (by only a few   
   psi usually) for front versus rear (just as they specify minus 2 degrees   
   camber for the rear). To hell with that. I use the same value, usually in   
   the high end of the range, and I lessen the camber to as neutral as it will   
   go in the rear (for tire wear considerations). I don't race so I don't need   
   the cornering traction they're seeking.   
      
   On a SUV or van, I still use the higher range, e.g., if they specify 36PSI,   
   I'll use 39PSI to 42PSI, where I don't worry about a few pounds (the gauges   
   don't even read within a psi anyway and there's the accuracy &   
   repeatability issue to contend with on any "typical" $5 tire gauge).   
      
   If it's visible, I "might" look at the tire sidewall, but there's almost no   
   chance that the tire sidewall max pressure is even going to be attained,   
   but it _still_ needs to be on the tire, IMHO, just like the maximum weight   
   a bridge can handle should be posted at each end of the bridge.   
   --   
   The beauty of helping each other on Usenet is we all learn more together.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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