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Old 01-24-2011, 09:57 PM   #1
jrrevo1
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Default Choice of fuels....93 w/ethanol or 91 ethanol free????

which would you choose? go for the 2 higher octane points with the 93 and 10% ethanol added or go with the 91 octane and no ethanol? mpg wise? tune? what do you think is better?


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Old 01-26-2011, 01:57 AM   #2
acke61
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no ethanol every time
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Old 01-26-2011, 08:15 AM   #3
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no ethanol, you will get better gas mileage
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Old 01-26-2011, 08:29 AM   #4
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Great question. I've wondered the same thing as we have both around here as well.
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Old 01-26-2011, 08:52 AM   #5
soup_notzee
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I wish I could find a station with no ethanol. Every one I've seen here in NY is "atleast 10% ethanol"
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Old 01-26-2011, 09:31 AM   #6
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93 with 10% ethanol.
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Old 01-26-2011, 09:41 AM   #7
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Quote:
Originally Posted by stretchedk7
93 with 10% ethanol.
What is your rationale for this?
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Old 01-26-2011, 10:07 AM   #8
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Quote:
Originally Posted by soup_notzee
I wish I could find a station with no ethanol. Every one I've seen here in NY is "atleast 10% ethanol"
Its federal mandate for stations to have ethanol. non ethanol consumer grade fuel is no longer available


Non ethanol fuel may only be available at race tracks.... but I don't know because I don't go to tacks.
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Old 01-26-2011, 10:19 AM   #9
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Quote:
Originally Posted by polarisboy385 View Post
Its federal mandate for stations to have ethanol. non ethanol consumer grade fuel is no longer available


Non ethanol fuel may only be available at race tracks.... but I don't know because I don't go to tacks.
So where are these people finding non-ethanol? ONLY at race tracks??
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Old 01-26-2011, 10:20 AM   #10
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my reasoning for the answer is if your two options are 91 with no ethanol and 93 with 10% then the 93 is better period. Thats whata I run and thats what is available where I live. Knock and det wise the 93 is better.
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Old 01-26-2011, 11:33 AM   #11
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Quote:
Originally Posted by polarisboy385 View Post
Its federal mandate for stations to have ethanol. non ethanol consumer grade fuel is no longer available


Non ethanol fuel may only be available at race tracks.... but I don't know because I don't go to tacks.
umm, might want to do a road trip sometime... I buy non-ethanol fuel every day. Many states also have labeling laws for gas contents, so you know what you are actually buying. (new york also has a labeling law, so if it doesn't explicitly say contains ethanol at the pump, it doesn't.)

There is no federal mandate that e10 must be used, period. What does exist are the clean air laws, as well as biofuel minimum quotes for states. The clean air laws apply differently to different areas, and the biofuel standards can be met in other areas.

Last edited by rkramer; 01-26-2011 at 11:38 AM.
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Old 01-26-2011, 11:52 AM   #12
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Quote:
Originally Posted by rkramer

umm, might want to do a road trip sometime... I buy non-ethanol fuel every day. Many states also have labeling laws for gas contents, so you know what you are actually buying. (new york also has a labeling law, so if it doesn't explicitly say contains ethanol at the pump, it doesn't.)

There is no federal mandate that e10 must be used, period. What does exist are the clean air laws, as well as biofuel minimum quotes for states. The clean air laws apply differently to different areas, and the biofuel standards can be met in other areas.
I stand corrected. I did a quick search,, a lot of states have faught and won the requirement. Apparently the epa was trying to make it federal across the nation. It looks like cali and washington have won the right to revoke the ruling. So once again..... I apologize and stand corrected
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Old 01-26-2011, 11:57 AM   #13
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Quote:
Originally Posted by rkramer View Post
umm, might want to do a road trip sometime... I buy non-ethanol fuel every day. Many states also have labeling laws for gas contents, so you know what you are actually buying. (new york also has a labeling law, so if it doesn't explicitly say contains ethanol at the pump, it doesn't.)

There is no federal mandate that e10 must be used, period. What does exist are the clean air laws, as well as biofuel minimum quotes for states. The clean air laws apply differently to different areas, and the biofuel standards can be met in other areas.
another reason to hate NY.... I want ethanol free!
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Old 01-26-2011, 01:31 PM   #14
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If your car is 100% stock you may save yourself a couple of bucks with 91 ethanol free as you will get slightly better gas mileage. However if your car is modded/tuned 93 + 10% ethanol is easily the better choice. The BTU content may be lower but once you raise the boost over stock levels it's all about using the highest octane fuel possible to prevent knock especially if you are using something like a Cobb OTS map which is a generic tune and not specific to your car or elevation, weather, etc.
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Old 01-26-2011, 02:20 PM   #15
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I personally do 93 and stayed away from gas stations with 91 because I had no idea 91 was ethanol free.... I might just try it next time!
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Old 01-26-2011, 03:20 PM   #16
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a very large amount of gas stations in south central Oklahoma have up to 91 octane, but with 0 ethanol. I tried my hardest to find 93 octane, ended up having to use 91 with no ethanol. I got better gas mileage and didn't hear any knock.
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Old 01-26-2011, 04:48 PM   #17
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I try to get 91, ethanol free if possible. But when it comes down to it, my car really doesn't care either way.
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Old 01-27-2011, 11:03 AM   #18
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Quote:
Originally Posted by G_REX View Post
I personally do 93 and stayed away from gas stations with 91 because I had no idea 91 was ethanol free.... I might just try it next time!

its not neccisarily. in fact if the same station has both. most likely its gonna have it
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Old 01-27-2011, 01:31 PM   #19
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I guess if you're 100% stock, then 91 would be OK. Personally for me, even for the short period of time my car was stock, I run the highest pump octane I can find which is 93 around here.
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Old 06-23-2011, 11:05 AM   #20
TTown1983
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I found this website when I was looking for ethanol free fuel for my ATV's...

www.pure-gas.org

It has a listing of all the stations that have ethanol free fuel by state. Hope this helps...
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Old 06-23-2011, 11:26 AM   #21
jonklein611
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Wish I could find 91 at all... so it's 93 with 10% E for me.
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Old 06-23-2011, 11:29 AM   #22
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Quote:
Originally Posted by rkramer View Post
umm, might want to do a road trip sometime... I buy non-ethanol fuel every day. Many states also have labeling laws for gas contents, so you know what you are actually buying. (new york also has a labeling law, so if it doesn't explicitly say contains ethanol at the pump, it doesn't.)

There is no federal mandate that e10 must be used, period. What does exist are the clean air laws, as well as biofuel minimum quotes for states. The clean air laws apply differently to different areas, and the biofuel standards can be met in other areas.
You buy fuel every day?
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Old 06-23-2011, 12:17 PM   #23
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I run whatever I can get, there is one station in the area that I know of that sells 93 without ethanol, the others are 91 with no ethanol, and then there are a few 93 with 10% and the Renew E-85 stations that have "Super 93" with 20% ethanol. In the spring and summer the difference is negligable as far as MPG goes. Honestly the car seems to run best on the Super 93 E20 blend than anything else. Maybe 1-2 MPG difference, but it has been working out to cost $.10-$.15 a gallon less after working in the MPG difference.
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Old 06-23-2011, 09:57 PM   #24
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there's 1 station up here that has non-ethonal "recreational fuel". not sure what octane it is though, didn't say.
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Old 06-23-2011, 10:02 PM   #25
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hey guys, 93 with ethanol is still *gasp* 93 octane. its superior to 91, dont be stupid.
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