Re: [Chrysler300] Drivability Problems Related To Ethanol?

[Tony Rinaldi <awrdoc@xxxxxxxxx>]

You may not believe that ethanol raises octane, but that is what they say it
does.

Ethanol (ethyl alcohol, grain alcohol): Typically fermented from grain.  An
octane 
enhancer added at a rate of up to 10 percent in gasoline.  Will increase
octane 
2.5 to 3.0 numbers at 10 percent concentration.  Ethanol is a fuel
oxygenate.

Source:
http://www.nwicc.cc.ia.us/pages/continuing/business/ethanol/glossary.htm

You all may be missing the point, no matter who the manufacturer is, the new
gas is blended with up to 10% ethanol.

When we use it, it seems that we may be missing an important point when
setting up our cars for hot weather.

Maybe our cars will run better with the timing ADVANCED to match up with the
more volatile ethanol mixed in.

My car definitely runs better that way, in hot weather, and with 93
whatever. This is at idle and at higher speeds.

Tony



From: Ray Jones <hurst300@xxxxxxxxxxx>
Date: Mon, 20 Aug 2007 20:29:30 -0500
To: Tony Rinaldi <awrdoc@xxxxxxxxx>
Cc: Ray Jones <hurst300@xxxxxxxxxxxx>, Chrysler 300 Club
<Chrysler300@xxxxxxxxxxxxxxx>
Subject: Re: [Chrysler300] Drivability Problems Related To Ethanol?

 
 
 

Tony and all;
I'm sorry,  I don't  believe that the alcohol raises  the octane. If it
did, it would be Sunoco 95 or something.
It does burn hotter, which is why alcohol fueled engines have
everything in the combustion chamber chromed, to withstand the heat. It
 doesn't help gas much tho.
Bottom  line is that when you burn anything you get X amount  of BTU's
out of a given amount of fuel. And when you cut the Gas by 10% by
adding Ethanol, you cut the octane, period.
We are paying more for less and having to buy more to go the same
distance, period.
So, in our high performance engines, we just aren't getting the power
(BTU's) we once did. It's just that simple.
You must compensate for the crap we are getting, being sold as gas.
I'm sure this will start arguments, but you can't get out more than you
put in, basic physics.
Ray

On Aug 19, 2007, at 1:07 PM, Tony Rinaldi wrote:

I asked the question from many people:

Why do I have to advance the spark with this new lower octane fuel?

Did not get a reasonable answer, until I asked Thomas White from
Whitehall
 Restoration (Hopkinton, MA) when I met him at Carlisle last summer.

He said that the increased alcohol had higher octane and was more
volatile.
 The new gas burns hotter in hot weather and would do the opposite in
cold
 weather.

So, there it is. Maybe if your car is running like crap, in hot
weather,
 when it never happened before:

ADVANCE the timing??

You all play nice now.

Regards,
 Tony Rinaldi

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