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Re: What's this about Ethanol mixes?
Posted by Dean (more from Dean) on Wed, 8 Jan 2003 12:17:26
In Reply to: What's this about Ethanol mixes?, bRAD, Wed, 8 Jan 2003 09:50:50
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Ethanol containes oxygen, but it is not free oxygen. It is sort of like a partially burnt hydrocarbon. So no surprise that it has around 1/2 the combusion energy of gasoline base stocks.
Any fuel component that has a reduced O2 demand, will cause the O2 sensor loop to increase the fuel mix until the O2 sensor set point is used. I found that 10% ethanol dropped my mpgs by about 6%... no surprise there.
As a rule, the higher octane fuels are lower energy. But they can allow for better ignition timing etc.
If you have a consistant highway run everyday, try different fuels and do highway sid clears to see what the result is.
Now that is the cost of 10% ethanol in your fuel? At $1.00 CDN/liter, a 6% increase in consumption is costing you around 6 cents per liter. At 65 liters? per tank, thats $3.90CDN per tank!
And, the ethnanol make no differenct to CO emisions on a modern engine, there is no advantage at all! Its a completely useless rip-off in this day and age. Some is needed in the winter for water dispersal, but iso-propyl is more effective. There are some octane benefits too, but there are better and probably more cost effective materials to use.
posted by 207.43.195...
Posts in this Thread:
- Final Word On Gas Mileage - a call to all Aero owners, Paul02Aero, Tue, 7 Jan 2003 23:15:08
- I am happy., Coolknight, Mon, 13 Jan 2003 09:21:20
- Re: Final Word On Gas Mileage - a call to all Aero owners, Paul Ellis, Sat, 11 Jan 2003 00:36:21
- Re: Final Word On Gas Mileage - a call to all Aero owners, Karl D, Fri, 10 Jan 2003 23:11:50
- Re: Final Word On Gas Mileage - a call to all Aero owners, frank
, Wed, 8 Jan 2003 20:32:56 - So you bought an Areo for gas mileage??!!, DivrDon
, Wed, 8 Jan 2003 17:48:13 - Lower octane = higher gas mileage/and more, TG, Wed, 8 Jan 2003 16:48:14
- I don't think so..., Stephen Goldberger, Wed, 8 Jan 2003 22:25:52
- 98+ RON a do ron ron, a do ron ron, Simon Watkins, Thu, 9 Jan 2003 14:52:21
- Re: I don't think so..., Dean, Thu, 9 Jan 2003 14:33:53
- Re: I don't think so..., TG, Thu, 9 Jan 2003 05:05:25
- Here's why this is true, TG, Thu, 9 Jan 2003 05:15:54
- Re: Here's why this is true ... not..., Stephen Goldberger, Thu, 9 Jan 2003 15:39:51
- Re: Here's why this is true, dtech, Thu, 9 Jan 2003 14:45:40
- Stephen, TG is correct, Schu, Thu, 9 Jan 2003 07:26:59
- Re: Car Specs, Paul02aero, Wed, 8 Jan 2003 19:24:43
- Re: Car Specs, TG, Thu, 9 Jan 2003 05:08:11
- Cold weather, hills, tight engine..., Stephen Goldberger, Wed, 8 Jan 2003 22:28:51
- Re: Car Specs, Dean, Wed, 8 Jan 2003 20:07:52
- 21.0, UnderDog, Wed, 8 Jan 2003 12:29:57
- Re: Final Word On Gas Mileage - a call to all Aero owners, KeithCT, Wed, 8 Jan 2003 12:03:23
- Final Word On Gas Mileage - Response, Paul02Aero, Wed, 8 Jan 2003 11:06:17
- Take her out on the highway...., Sieglo, Wed, 8 Jan 2003 10:19:23
- Re: Final Word On Gas Mileage - a call to all Aero owners, AeroLady, Wed, 8 Jan 2003 09:32:36
- Re: Final Word On Gas Mileage - a call to all Aero owners, Dean, Wed, 8 Jan 2003 09:26:51
- 2002 Aero wagon, MT 60%city 40% highway (in traffic)..., bRAD, Wed, 8 Jan 2003 09:00:43
- Avg 28mpg, Schu, Wed, 8 Jan 2003 07:51:39
- Re: Final Word On Gas Mileage - a call to all Aero owners, CraigU, Wed, 8 Jan 2003 07:14:22
- Keep it simple, Lou, Wed, 8 Jan 2003 07:06:34
- about the same as yours, Aero'ed, Wed, 8 Jan 2003 06:49:06
- Re: Final Word On Gas Mileage - a call to all Aero owners, dwin, Wed, 8 Jan 2003 01:26:21
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