Pinging and octane ratings

William K Denton wkdenton at
Thu May 24 09:03:46 PDT 2007

From: "James Keefover" <jkeefover at>

> Can someone confirm that the manual calls for 87 octane


GPz1100 Motorcycle Owner's Manual
Part #99920-1776-01
Page 29, second column...
"The octane rating of a gasoline is a measure of its resistance to 
detonation or "knocking".  Use a gasoline with an octane rating equal to or 
higher than that shown in the [table below]."

[From table]
Antiknock Index (RON+MON)/2     =    Minimum rating of 87
Research Octane Number (RON)     =    Minimum rating of 91

The antiknock index method (first one above) is the one used at US gas 

Bill in Yardley, PA
wkdenton at
'96 GPz1100
'86 SRX600
'81 VX920RH
'80 CB-X
'78 XS650E
'77 XS650D

More information about the GPZList mailing list