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Hybrid Vehicles Honda Accord Hybrid Honda Accord Hybrid MPG-Real World Numbers
138 messages, Last post on Jul 27, 2008 at 10:19 AM
You are in the Honda Accord Hybrid Forum. Your Host is pf_flyer
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Replying to: s2khah (Jan 10, 2006 7:53 pm)
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Replying to: s2khah (Jan 10, 2006 7:53 pm) E10 gasoline has ~ 97% of the Btu’s offered in non-Ethanol laced gasoline. Your FE hit will be on the order of 1 - 3% using E10 vs. Non-E10. Colder temperatures (below freezing) can take down combustion and driveline efficiencies by as much as 25% overall for those with shorter trips. In a nutshell, cold temperatures have a far more drastic effect on FE then does E10. A block heater will help in the warm up phase when you are receiving ~ ½ the warmed up FE for those first 1 - 3 miles but it will not help the driveline and combustion in-efficiency’s described above. I see an ~ 12% overall FE hit from 70 degrees F to below 32 degrees F with longer drives if that helps? Good Luck Wayne R. Gerdes
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Replying to: xcel (Jan 11, 2006 5:44 am) I fully agree with the thermal effects on driveline performance, even on long drives. However since the HAH drivetrain is predominantly in the engine compartment I expect the heating of the engine coolant to make an improvement (not cure) on almost the entire driveline due to parasitic heating of the trans/differential by the warmed engine. The wheels and bearings, front and rear, would be obviously excluded from any benefit. As far as Honda making engine preheating a standard, it makes no sense considering a large portion of HAH owners do not live in areas that are subject to 32 degrees or less at night. Plus, plugging in the heater at night, seems a likely hassle for many owners. My interest here is just to find out if anyone has tried this approach and to what success. If this works, I think it is a modification that could bolster the HAH high mileage claims, and be a very "Green" thing to do. If beneficial, it may result in Honda adding it to the "Options" list at purchase rather than making it a somewhat difficult item to find that many people don't know is available. FYI: My old Toyota T100 offered that as an "option" (when new) so someone somewhere must consider it a reasonable accessory. And, except for "pre-start" bearing oil injection I feel that it would lengthen engine life better than most other modifications.
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Replying to: s2khah (Jan 11, 2006 6:28 am) As has been previously stated, a block heater will help to remove some of the (½ the average FE over the first 1 - 3 miles) FE hit. It will not cure it by any stretch of the imagination. As for a large portion of AH owners not subjected to less then 32 degrees F, about half the country (geographically) is subjected to these types of temperatures during mid-winter for months of the year. It is not just 32 degrees either. Below 70 degrees F, there is a hit. And 50, and 30, and 10, and so on and so on. The FE hit does not happen at discrete temps of course but is a steady decline as the Mercury plummets unfortunately for us all. Here in Chicago, our average daily Hi/Lo temps in the winter months are as follows: Dec.: 24/37 Jan.: 18/32 Feb.: 24/38 Mar.: 32/47 Chicago has a somewhat temperate climate given its proximity to Lake Michigan which acts as a huge buffer to the extremes. A city like Des Moines, IA., Rockford, IL., Madison, WI., Minneapolis, MN. Sioux Falls, SD., Bismarck, ND, many towns and cities in the upper elevations of the Rockies and Pacific Northwest, much of the upper North East, etc. are subjected to even lower average temperatures in the winter months. As for the green thing to do, might I recommend a particular website where the hypermilers spend most of their time? You can do much more for the environment with your right foot, eyes, and brain then you will ever be able to achieve with an engine block heater. About all I can add is trust me on this and consider what is posted below to find out more  Good Luck Wayne R. Gerdes   
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Replying to: cal_cal (Jun 24, 2005 9:27 am) |
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Replying to: dewey (Oct 02, 2005 7:35 am) |
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Replying to: viet (Jan 10, 2006 11:34 pm) The why did Hoinda try to significantly change the 2006 HAH. And is doing so ran into some issues and the delivery delays? Did they cripple a healthy pig; abiet heavily discounted ? Cheers, MidCow |
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Replying to: mes1 (Jan 29, 2006 1:32 pm) Good Luck, MidCow |
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Replying to: viet (Oct 08, 2005 11:40 am) You never got a straight answer did you? Don't hold your breath. Enjoy you Hondas Viet! MidCow
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Replying to: midnightcowboy (Jan 30, 2006 7:47 pm)
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