<VV> Correction Re: To Ping or Not to Ping ? - Octane - then & now

[FrankCB at aol.com]

JR,
But it's NOT the value of M plus half the value of R.  Rather it's  equal 
to half of the SUM of M and R which is written as (M+R)/2.   Consider it as 
the AVERAGE of M and R.  There are 2 ways of measuring the  octane of 
gasoline.  One is the Motor method and the other is the  Research method.  The 
octane number posted on the gas pump is simply  the average of the 2 numbers.  
 
Frank Burkhard
 
 
In a message dated 9/20/2010 12:12:27 A.M. Eastern Daylight Time,  
hmlinc at sbcglobal.net writes:

Bryan  just told you.  M + R / 2
Later,  JR