<VV> Australian p.s.i.?

[Wrsssatty@aol.com]

I think most everyone here knows that when GM introduced the Corvair, they  
recommended 26 p.s.i. tire pressure for the rear tires.  Australian Steve  
Simpson, writing in the September 1961 issue of "Modern Motor" magazine road  
tested a Corvair and noted that GM "recommended 30 lbs per square inch" in the  
rear.  My question, does anyone know whether, at that time, there was a  
difference in how tire pressure was measured in Australia versus in the United  
States (just as there were differences in h.p. ratings and "Imperial" gallons)  or 
was he simply mistaken?  Private replies O.K.
 
Thanks!
 
Bill Stanley