Ethanol Free Gas

[gkhashem]

I actually found some near me. The octane is 90. Is that enough for our cars which need premium fuel?

[Big Fins]

Sure. It runs great in my cars. Even with the timing bumped a bit it works.

[Art Director]

Here in Colorado, the octane ratings are lower than most other states. Regular is 85, midgrade is 87, and premium is 91. When you do find ethanol-free gas, the octane ratings are either 87 or 91, depending on the station you go to. But the price is similar to premium with ethanol.

[fishnjim]

One good way to tell, run some.
I need to post my gas storage study pix.   I'll have to round them up.  Ethanol free did well.

[Big Fins]

Here in Colorado, the octane ratings are lower than most other states. Regular is 85, midgrade is 87, and premium is 91. When you do find ethanol-free gas, the octane ratings are either 87 or 91, depending on the station you go to. But the price is similar to premium with ethanol.

You would think with the high altitude in many parts of the state, the octane rating would be higher than most.

[gkhashem]

A slight bit out of the way but reachable.

The price was 3.30 nice considering premium is 3.15 right now so not too much more.

I think this station has it since it is near Lake Sunapee in NH so boat owners love this stuff. But it is right at a gas pump with the other stuff.

[Big Fins]

Cumberland Farms is the big retailer of real gas in these parts. There are others, but CF is clean and close. I paid $2.65/gal yesterday. It's 90 octane.

[Big Fins]

Click the link George. Lot's of stations near you.

https://www.pure-gas.org/index.jsp?stateprov=NH

[hornetball]

90AKI translates to ~94RON.  So, it might be enough.  What year is your car?

A '76 is 8.25:1 CR and would never need premium.  Can't really use that to judge suitability for pre-'71 cars.

Octanes at higher elevations are lower as VE and dynamic compression ratio are reduced due to the lower ambient pressure starting condition.  Engines make less power at higher elevations as well (same reason).

[cadman56]

I;ve gone to the Pure Gas website.  Should I  actually call the locations I am considering for a fuel stop on my way to the Fall Festival to verify availability?
Seems like ethanol free gas is available almost anywhere.  It is available in Wichita, KS as EO 87.  My 91 Brougham runs great with it but it is priced higher than 91 premium that has ethanol.

[Jim Miller]

This gas is readily available along Lake Erie as its used as marine fuel. It doesn't deteriorate as fast as ethanol laced gasoline. I use it in both Cadillacs, the 52 year old 383 Chrysler in my boat, lawn mowers, and snow blowers.

[Big Fins]

90AKI translates to ~94RON.  So, it might be enough.  What year is your car?

A '76 is 8.25:1 CR and would never need premium.  Can't really use that to judge suitability for pre-'71 cars.

Octanes at higher elevations are lower as VE and dynamic compression ratio are reduced due to the lower ambient pressure starting condition.  Engines make less power at higher elevations as well (same reason).

I learned something new about altitude and density. Thanks.

While my '59 wasn't pre-war, it did run a 10.5:1 compression ratio and the 90 octane available here ran very nicely. I am also at basic sea level too.

[Bill Young]

I live in Central Florida and in my 1955 Fleetwood I use Ethanol Free Gas exclusively in my car. I also add a can of Lead Additive and a small amount of Marvel Mystery Oil. Since doing so my Engine burns almost not a drop of oil nor does it leak hardly any oil on the ground. The price here is approx. $3.30 a gallon and the Octane rating is 90.

[Barry M Wheeler #2189]

Locally, Marathon is the place that has ethanol free gas. The '91 is running fine with the new injectors and using this gas.

[cadillacmike68]

I use ethanol free in my lawn equipment, but the 1968 requires 95 or higher octane so I run Shell premium with some 110 octane mixed in. All the fuel lines have been replaced so there are no issues with them getting ruined. The newer car all get shell regular. Shell is a toptier gas.

[Cape Cod Fleetwood]

I use ethanol free in my lawn equipment, but the 1968 requires 95 or higher octane so I run Shell premium with some 110 octane mixed in. All the fuel lines have been replaced so there are no issues with them getting ruined. The newer car all get shell regular. Shell is a toptier gas.

This is the way to go for the versant amongst us, 'cocktail mixing' fuel. A top tier high octane fuel mixed with a pure lead, high octane, non-ethanol race fuel is the way to go. A PITA for sure, and pricey, but put a price on engine work or replacement.

[Art Director]

You would think with the high altitude in many parts of the state, the octane rating would be higher than most.

We get screwed here. My 2003 DTS requires 87 octane, so I have to spend extra on midgrade. Any other state, it would run on regular.

[hornetball]

We get screwed here. My 2003 DTS requires 87 octane, so I have to spend extra on midgrade. Any other state, it would run on regular.

Your DTS requires 87 octane at Sea Level.  It does not require it where you live.

[cadman56]

Tim,
Your car won't run ok on the 85 in CO?
Are you going to the Fall Festival?
Others, I tried the EO 87 in my 2005 LaCrosse and 2015 Silverado.  Neither one ran better and mileage was not improve so I went back to regular 87 in them.
Larry

[gkhashem]

Locally, Marathon is the place that has ethanol free gas. The '91 is running fine with the new injectors and using this gas.

So Barry where the injectors the issue in your car? Was my suggestion useful?