Where do you find 93 octane gas?

bosshause said:

here in germany we got 95 octane at all pumps =]

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Here in Michigan we can get 93 at almost every gas station I have ever been to. If you go to places like Colorado a lot of times you will see a rating as low as 85.

You do have 95 in Germany but it isn't the same rating system we use in the U.S.
German 95 RON is equivalent to U.S. 91 AKI. U.S. 93 AKI is equal to 98 RON

In the U.S.A. we us a rating system called the Anti-Knock Index or AKI, the rest of the world uses a system called Research Octane Number or RON

The octane rating shown in the United States is 4 to 5 points lower than the rating shown elsewhere in the world for the same fuel

In the Rocky Mountain (high elevation) states, 85 AKI (90 RON) is the minimum octane, and 91 AKI (95 RON) is the maximum octane available in fuel.

The reason for this is that in higher-elevation areas, a typical naturally-aspirated engine draws in less air mass per cycle because of the reduced density of the atmosphere. This directly translates to less fuel and reduced absolute compression in the cylinder, therefore deterring knock. It is safe to fill a carbureted car that normally takes 87 AKI fuel at sea level with 85 AKI fuel in the mountains, but at sea level the fuel may cause damage to the engine. A disadvantage to this strategy is that most turbocharged vehicles are unable to produce full power, even when using the "premium" 91 AKI fuel.

Hope that helps :worship :kooky:

h4ck.b0x7 said:

Here in Michigan we can get 93 at almost every gas station I have ever been to. If you go to places like Colorado a lot of times you will see a rating as low as 85.

You do have 95 in Germany but it isn't the same rating system we use in the U.S.
German 95 RON is equivalent to U.S. 91 AKI. U.S. 93 AKI is equal to 98 RON

In the U.S.A. we us a rating system called the Anti-Knock Index or AKI, the rest of the world uses a system called Research Octane Number or RON

The octane rating shown in the United States is 4 to 5 points lower than the rating shown elsewhere in the world for the same fuel

In the Rocky Mountain (high elevation) states, 85 AKI (90 RON) is the minimum octane, and 91 AKI (95 RON) is the maximum octane available in fuel.

The reason for this is that in higher-elevation areas, a typical naturally-aspirated engine draws in less air mass per cycle because of the reduced density of the atmosphere. This directly translates to less fuel and reduced absolute compression in the cylinder, therefore deterring knock. It is safe to fill a carbureted car that normally takes 87 AKI fuel at sea level with 85 AKI fuel in the mountains, but at sea level the fuel may cause damage to the engine. A disadvantage to this strategy is that most turbocharged vehicles are unable to produce full power, even when using the "premium" 91 AKI fuel.

Hope that helps :worship :kooky:

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good to know, I never knew any of this

blgage93 said:

I'm in tulsa, oklahoma, former oil capital of the nation, and I can't get 93 anywhere but the track.

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I've heard that Oklahoma doesn't allow gas stations to sell 93, but that's just what I've heard. We don't have any gas stations here in Stillwater that have 93 either.



But koletsb, you could possibly buy octane booster for everytime you fill up.

lovemystang22 said:

But koletsb, you could possibly buy octane booster for everytime you fill up.

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I would steer clear of buying octane boosters.

Koletsb, one option you have is I know that there is a 76 gas station at the end of 110 in Pasadena that carries 100 Octane Unleaded.

Arroyo Parkway 76
155 East Glenarm Street, Pasadena, CA 91105-3435

What you do is fill the tank with 3.5 to 3.75 gallons of 100 Octane then fill the rest with 91 Octane.

This will give you a nice 93 blend!! :bigthumbsup

Here is a chart if you would like to use it!!!! :winks

h4ck.b0x7 said:

I would steer clear of buying octane boosters.

Koletsb, one option you have is I know that there is a 76 gas station at the end of 110 in Pasadena that carries 100 Octane Unleaded.

Arroyo Parkway 76
155 East Glenarm Street, Pasadena, CA 91105-3435

What you do is fill the tank with 3.5 to 3.75 gallons of 100 Octane then fill the rest with 91 Octane.

This will give you a nice 93 blend!! :bigthumbsup

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Thanks for the info but for now I have not even purchased the tuner yet. I just wanted to get some extra info.

Is a 91 tune compared to a 93 tune that different?

koletsb said:

Thanks for the info but for now I have not even purchased the tuner yet. I just wanted to get some extra info.

Is a 91 tune compared to a 93 tune that different?

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On that front I am not really sure...I drive a 1987 5.0 and have always tuned it myself. I only run 93 in it.

Most people will say that 93 can be a waste of money, however, even if your tune isn't setup for it you will still benefit from the extra anti-knock index. It is a cleaner fuel. (Not to be confused with GREENER)

blgage93 said:

I'm in tulsa, oklahoma, former oil capital of the nation, and I can't get 93 anywhere but the track.

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it took me a couple years to find 3 stations within 50 miles of me to get 93. the closest of the 3 is about 15 miles away, but i drive there just to get it.

from what they say, the 93 comes from oklahoma so thats kinda odd. i guess the 1 station is owned by a car guy and he gets it shipped in. 1 station is in a big boating town and not sure whats up with the 3rd one, i just found it last month. the 93 is also the only grade that does not contain ethanol.

amustangrocks said:

it took me a couple years to find 3 stations within 50 miles of me to get 93. the closest of the 3 is about 15 miles away, but i drive there just to get it.

from what they say, the 93 comes from oklahoma so thats kinda odd. i guess the 1 station is owned by a car guy and he gets it shipped in. 1 station is in a big boating town and not sure whats up with the 3rd one, i just found it last month. the 93 is also the only grade that does not contain ethanol.

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Im on the Lake Erie side of NY and here we have 87,89,91,93 and even 94 Octane, all the stations carry all the Octanes. I only buy mine from SUNOCO:bigthumbsup but Mobile has 94.
Mike, SUNOCO has a Sticker on their Pumps that says (Contains 10% Ethanol) So Im Assuming that even the 93 Octane contains Ethanol??? I though ALL Gas sold in the US contained at least 10% Ethanol,,,,,someone chime in:winks

I wouldn't entirely say that ethanol is bad, however:

Simply put, ethanol is an excellent SOLVENT (dissolves plastic, rubber, fiberglass and more), and unlike MTBE, ethanol with ABSORB WATER which can cause serious problems.

Most people think that if the gas pump doesn't have a sticker then the gas doesn't contain ethanol. THIS IS NOT ALWAYS TRUE!!!

The sticker law is on a state by state basis, not a federal law. I know that in Michigan and Ohio they do not have to have a sticker at the pump listing the ethanol content.

Here is a list (If the state is not listed then stickers are not required):

Alabama - AL (1 % or higher)
Alaska - AK Always Labeled
Arizona - AZ (1 % or higher)
Arkansas - AR (1.5 % or higher)
California - CA Always Labeled
Colorado - CO (2 % or higher)
Connecticut - CT (1 % or higher)
Delaware - DE (1.5 % or higher)
Florida - FL Always Labeled
Georgia - GA (1.5 % or higher)
Hawaii - HI (1 % or higher)
Idaho - ID (1 % or higher)
Illinois - IL (1 % or higher)
Iowa - IA (1 % or higher)
Louisiana - LA (1 % or higher)
Maine - ME Always Labeled
Massachusetts - MA (1 % or higher)
Mississippi - MS (1 % or higher)
Montana - MT (1.5 % or higher)
Nebraska - NE (1 % or higher)
New Mexico - NM (1 % or higher)
New York - NY (1 % or higher)
North Dakota - ND (1 % or higher)
Oklahoma - OK (1 % or higher)
Oregon - OR (1.5 % or higher)
Pennsylvania - PA Always Labeled
Rhode Island - RI (1 % or higher)
South Carolina - SC (1.5 % or higher)
South Dakota - SD (2 % or higher)
Tennessee - TN (1.5 % or higher)
Texas - TX (1 % or higher)
Utah - UT (1 % or higher)
Vermont - VT (1.5 % or higher)
Virginia - VA (1 % or higher)
Washington - WA (Up to 10%)
West Virginia - WV (1.5 % or higher)
Wisconsin - WI Always Labeled
Wyoming - WV Labeled "gasahol"

Is it bad?? You Decide!!! :winks