JustinL

Is there any contraindications to using ethanol blended? A couple gas stations around here supply 92 octane gas with ethanol and I was wondering if 91 octane non-blended was better or worse.

Thanks

rage2

I use mohawk/husky 92 ethanol exclusively on my car. It has the highest knock limit and greatest power generating potential. Man I did a lot of research into it last year trying to find the best pump gas .

AC

See Danno's RacerX website for making your own high octance fuel. One of the ingredients that works very well is Xylene. See his website for the formula. The is a difference.

PS. Use a big funnel when pouring into your tank.

Jaak Lepson

Justin ... I use Sunoco gas exclusively in both my cars and all their blends are 10% ethanol. In Canada we are able to get Ultra 94 octane at all their stations and my P-car shop recommends it.

With their gas I was able to pass our emisions test with very low numbers as it is the cleanest fuel around!!! I belive Irving Oil on our east coast is the lowest in North America. Also if you live in a cold climate there is no need for gas line anti freeze as ethanol is alcohol based!

I have had no problems in the last 10 years using their fuels (951 loves it!!!) in any of my past and present cars.

<img border="0" alt="[cherrsagai]" title="" src="graemlins/drink.gif" />

<img border="0" alt="[cheers]" title="" src="graemlins/beerchug.gif" />

Brett

During winter in colorado we have 10% ethanol in our gas to reduce emissions. I have found I doesnt give you as good of gas milage as pure gas and doesnt feel as powerful. just my .02

Danno

"During winter in colorado we have 10% ethanol in our gas to reduce emissions. I have found I doesnt give you as good of gas milage as pure gas and doesnt feel as powerful."

That's right. The -OH hydroxyl group that makes up an alcohol is simply huge compared to the rest of the gasoline molecules. This is basically bundling oxygen internally with your fuel. However, it displaces hydrocarbons from the space it occupies and gives each gallon of fuel a lower energy content.

Brett

I knew Danno had the detailed explanation to my post <img border="0" alt="[thumbsup]" title="" src="graemlins/bigok.gif" />

rage2

Yes, using ethanol blended fuels definately sucks for fuel economy (I get 200-240 miles on a tank of gas), but in the end, I can turn the boost up just that little bit more, and make that extra 20 horse .

Brett

With all of the rising fuel costs at the pump it might be worth buying a barrel of race fuel

rage2

</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Brett:
<strong>With all of the rising fuel costs at the pump it might be worth buying a barrel of race fuel</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Way ahead of ya buddy

<img src="http://www.virgeweb.com/rage2/944t/2002-09%20VPMS103.JPG" alt=" - " />

GaryK

Brett, and anyone else in the Denver area -- Duggan's Petroleum on Santa Fe in Sheridan sells 101 octane unleaded for $3.00/gallon, not too bad considering I paid $1.89 for 91 octane pump premium today. You can pump it directly into your car, cans, etc. I believe it is reformulated, oxygenated as Danno says, for the winter as well.
I've found even 5gal. mixed in per tank helps on the street, though I run it as high as 100% on the track. They also sell a 108 octane unleaded!

Brett

Gary thanks for the info. I will have to check into that. Are you going to 2nd Creek on saturday??

GaryK

There's a club event at 2nd Creek Sunday, which I'm planning on attending if I can get the day off and it doesn't snow. And oh yeah, if I finish putting on the brake cooling kit, which shouldn't be a problem. I haven't even driven the car for six weeks!

Danno

Found an interesting brand of octane-boost on the shelf the other day. Pure hydrocarbon with no carcinogenic organo-metallics. Checked out the smell and it was pretty much pure xylene (117-octane). Incredible part was it was sold in pints for $20!!! You can go out and get a whole gallon of xylene for less than $10. Two gallons of xylene in 1/2 a tank would raise your octane from 91 to 96.

GaryK

Chevron-Phillips race fuels have been reformulated and, at least at my local source, the price has gone up - maybe they thought they had to keep pace with rising prices on normal pump gas. Anyway, the B35, which was 101 octane has been replaced here by the TT100, which is 100 octane,now $3.75/gallon instead of $3. But the interesting part is the TT100 has 0% oxygen/wt. while the B35 had 2.7% oxygen/wt. The web site
<a href="http://www.cpchem.com/fuels/products/racingfuels.asp" target="_blank">Chevon-Phillips Race Fuels</a>

has more info, including tech data for you chemists out there.
The guy at the station told me he's gotten feedback that the TT100 runs richer than the B35 because it's not oxygenated.