The answer to your pinging noise problem
[QUOTE=SPQR;1891308]Honda specifies 95.........
http://euro.honda.com.au/about-the-c...spx#powertrain
.........Which means that it should not require 98. If dealers say it does then Honda needs to change the specification so that people can make an informed choice. 95 RON is about $1.65 per litre in Darwin at the moment. 98 RON is over $2.00 per litre!!!
With a lot of letters to the media about the same engine noise we are experiencing here in Australia finally they have caved in and given us an answer. It is as follows. Software fix is reputedly available mid February
Dear John, we appreciate that you are concerned about the presence of an engine operational sound as it detracts from your overall enjoyment of the vehicle and we wish to again reassure you that this condition will have no impact on performance or engine reliability. We have been working closely with the technical division of Honda Corporation in Japan and following extensive investigations we can confirm that the condition you are experiencing is not that of “pinging” which is known within the industry as “pre-ignition”. The condition that you are experiencing is a combustion sound taking place after the programmed ignition, namely a “post combustion noise”. As this condition takes place after the programmed ignition and with the piston on its downward stroke, there is no detrimental force or impact within the engine in your vehicle. Therefore your engine has not sustained any damage and we are happy to offer you a guarantee on the engine while you are the owner of this vehicle as a way of reassuring you of our confidence that no wear or damage is occurring to the engine or associated components.
We trust this advice from the manufacturer clarifies the matter.
Regards
Joe Gelsi
Customer Relations Manager
Honda Australia Pty Ltd