<VV> Correction Re: Gas Mileage

[FrankCB at aol.com]

V V ers,    
    Of course Bob is correct!  It  was PUMP octane that I should have 
referred to with my octane  numbers.  Pump octane (the octane number posted on the 
gas pump) is  actually the AVERAGE of the research number octane (RON) and the 
motor octane  number ((MON).  The the pump number is = (RON + MON) / 2.  This 
comes  from the two different methods used to measure octane, one is the  
research number and the other is the motor number.  So the number you  see on the 
pump is the average of those two methods.
    Thanks Bob for giving me a much needed  correction.
    Frank "brain ahead of fingers" Burkhard  
 
 
In a message dated 5/9/2006 8:09:15 PM Eastern Standard Time, BobHelt  writes:

 
In a message dated 5/9/2006 12:00:01 PM US Mountain Standard Time,  
FrankCB at aol.com writes:

Let's get back to basics.  In my area, Premium  fuel (93-94 RON)  costs 
only 20 cents more than Regular gas (87  RON). 


Hi Frank,
Just a question. Are you sure it's RON and not pump octane? I believe the  
EPA requires all octane to now be stated as pump octane = (RON + MON)  /2.
 
Regards,
Bob Helt