John Horner <jthorner@yahoo.com> wrote in
news:YeL1j.5127$dh.2362@trnddc05:

> Tegger wrote:
>
>>
>> You can find ethanol-free gas almost everywhere. It's usually in the
>> form of the the "premium" octane grades, like 91 pump octane. The
>> lower the octane, the higher the ethanol content. But you won't find
>> non-oxygenated anywhere in North America now that MMT is out of use.
>>
>>
>
>
> You have that one backwards Tegger. Ethanol has a naturally high
> octane
> variously reported at somewhere from 113 to 129 and is used in fuels
> in part to increase the final octane rating.
>
> http://www.gov.mb.ca/est/energy/ethanol/ethanolfaq.html
>
> http://en.wikipedia.org/wiki/Octane_rating
>
> In many cases premium fuels actually have a higher ethanol content
> than their regular fuel counterparts because adding ethanol is one of
> the simple ways to increase octane ratings.
>


I filled up today at a local Shell.

On the pump was a sticker. It said:
"87 octane: contains up to 10% ethanol
89 octane: contains up to 5% ethanol
91 octane: contains no ethanol."

Want me to take a picture and post it?


--
Tegger