Hi Lars-ss:
___I read his yahoo post about an hour ago as well. The Honda manager is full of it. Advance only pulls back when the KS detects knock. The only place knock would be detected would be closer to WOT then not. Guess where the hypermilers drive? 1,600 – 1,700 RPM and this is no where near where the advance would be pulled by a knock sensor. 4,000 + RPM’s would but not < 2,000 RPM’s. The Honda guy placed his foot in his mouth with that statement imho.
___I read this kind of garbage in the Acura MDX.org forums all the time as well. Honda/Acura recommends Premium unleaded. Sure if you want all 260 + HP at WOT, Premium will let the advance ride the top of the curve. At far less then WOT - throttle angle/load, the fuel economy received from Regular unleaded is just as good as Premium if not better depending on the caloric content of the additives to increase octane. The guys over there are shocked when I post the X’s dash pics w/ > 30 mpg and I always run 87 Regular unleaded in it as well …
___As for the rest of Pat’s post, I can achieve 45 - 50 mpg from a brand new and non-warmed up std. 04 Accord LX/EX I4 so how Pat received ~ 34 mpg in the Accord Hybrid is beyond me given his years of Insight game gauge training? I have no idea what he was speaking of in regards to the IMA pack at a high SoC helping mileage or not either. Once strong hidden charging ceases, there is no more drag and the fuel economy is what it is. 18 - 19 bars on the SoC will not drag the fuel economy down in an Insight and I highly doubt the Accord Hybrid’s SW was changed to maximize charge (force charge) up to 20 of 20 bars either. If you find the time today, post a link to this thread so we can see the fireworks fly

I will respond in kind when I get back home tomorrow afternoon.
___Good Luck
___Wayne R. Gerdes
___Hunt Club Farms Landscaping Ltd.
___
Waynegerdes@earthlink.net