XPost: comp.mobile.android, misc.phone.mobile.iphone   
   From: xenolith@optusnet.com.au   
      
   On 1/5/2022 8:33 am, WaltS48 wrote:   
   > On 4/30/2022 11:12 PM, Xeno wrote:   
   >>> More to the point, only people with abnormally low IQ fall for paying   
   >>> extra   
   >>> for air that has a visible green cap but which has no practical value.   
   >>   
   >> For what its worth, using nitrogen in tyres is just another way to   
   >> suck people into a *regular subscription payment* when they top up   
   >> their tyres.   
   >   
   > It doesn't help the tires but it helps the tire provider's bottom line, or   
   > they wouldn't bother to do it.   
   >   
   > BTW, what did you think about the claim from somebody that steep twisty   
   > mountain driving doesn't wear tires any more than driving on flat roads   
   > does?   
      
   The camber gain from KPI/SAI will always wear tyres more on the outside   
   edge during high or full lock turns. Mountain driving, with sharp   
   hairpin bends, will guarantee it. Even in normal city street driving,   
   camber gain will be prevalent and worse on the nearside tyre. If you   
   have a comprehensive understanding of steering and suspension design,   
   then it is quite an easy thing to visualise. Weber Auto, on You Tube,   
   did something on steering some time back and, IIRC, they explained the   
   aspect of KPI/SAI that causes the issue. It is not a well understood   
   issue, even in the trade, but is *one* of the reasons tyre rotation is   
   essential. Just turn your steering to full lock and look at the camber   
   angle of the *inside* wheel - camber gain will be very evident. The   
   effect is worse if the vehicle has wider low profile tyres.   
      
   --   
   Xeno   
      
      
   Nothing astonishes Noddy so much as common sense and plain dealing.   
          (with apologies to Ralph Waldo Emerson)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)