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Old 18 Nov 2009, 07:26 am
C. E. White
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Default Re: Top Tier Gasoline

Probably worth looking at the following reference:

http://www.epa.gov/otaq/rfg.htm

Certain areas in Wisconsin require reformulated gasoline. If you are
in the Milwaukee area, the gasoline almost certainly includes 10%
ethanol (see
http://www.epa.gov/otaq/regs/fuels/r...erf/mil-wi.htm ).

Apparently there is at significant anti-ethanol sentiment in
Wisconsin. There is actually a web site listing stations that sell
Ethanol free gas (
http://www.molonyrealestate.com/Etha...Wisconsin.html )
.. The list did not include any "Road Ranger" or "Pilot" stations.

As for differences in fuel mileage when using ethanol "enhanced"
gasoline - at leaat in theory gasoline with 10% ethanol should have
about 1.5% less energy than "pure" gasoline, but in practice the
difference can be less. And at least for engines designed to tolerate
gasoline with 10% ethanol, I think the difference in fuel economy is
probably even less. However for older vehicles (particualrly
carburetted vehicles) the difference in mileage can be much more
significant. For people with recent vehciels (bult since 2000) I doubt
the difference in fuel economy between straight gasoline and gasoline
with 10% ethanol is detectable using typical calculation methods. With
a dynamoter and careful measurements you could detect the difference,
but for ordingary driving and calcualtions using pump fills, there are
just too many factors to make an accurate determination feasible.

"Bionic Man" <t.p.bernhardt@sbcglobal.net> wrote in message
news:573cb714-c840-4149-8291-cfff9a5819b1@w19g2000yqk.googlegroups.com...
>
>> The "Top Tier" gas standard dictates the use of lots of ethanol. I
>> refuse
>> to use it for that reason.
>>
>> --
>> Tegger
>>
>> The Unofficial Honda/Acura FAQwww.tegger.com/hondafaq/

>
> Tegger:
>
> As always, thanks for chiming in.
>
> You open up a whole other subject of great interest to me. Please
> check on the accuracy of your statement. I respect your expertise,
> but
> I believe you are incorrect on this, at least in some cases. Shell
> is
> also Top Tier, and many stations sell the brand without ethanol.
>
> Here in Wisconsin, at some stations, they sell gas with and without
> 10% ethanol. The pumps specifically state that fact. The Road
> Ranger/
> Pilot station I referenced had "Top Tier" decals on ALL the pumps,
> those with and without ethanol.
>
> By the way, they charge a little more for the fuel without ethanol,
> and I'm glad to pay the extra price. I get much better gas mileage
> with non-enthanol fuel.



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