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#1954167 - 07/15/10 01:41 PM 87 oct (100% ethanol free) or 87 w/10% ethanol?
Mark72 Offline


Registered: 09/10/09
Posts: 923
Loc: Illinois
I typically prefer to use major brands of gas, i.e., Mobil, Shell or BP, but we have an FS (Farm Service) gas station in town that offers 87/89/92 octane. The 87 octane is 100% pure gas with no ethanol blended in, and the their other two grands have the ethanol.

My question is, would I get better gas mileage by using the FS 87 with no ethanol in it? And would it burn cleaner/better?

It's strange, but when I fill up at BP or Shell here in central Illinois and drive to my brothers in Fort Wayne Indian I get awful gas mileage, but when I fill up there for the trip home (Indiana doesn't have to blend ethanol in their gas) I get excellent mileage, and use noticeably less fuel simply by looking at the gauge. But I can't be sure if it's the ZERO ethanol or simply driving conditions and temps.

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#1954190 - 07/15/10 01:58 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Mark72]
millerbl00 Offline


Registered: 02/11/08
Posts: 667
Loc: Louisiana
Hard to say. I gained almost 4 mpg by using 100% pure gas with no ethanol blended in. Try it.

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#1954198 - 07/15/10 02:05 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: millerbl00]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 15130
Loc: Sunny Florida
I have a very similar experience.

Despite all the naysayers who tell me how ethanol blends are nearly indistinguishable from regular fuel, my car gets way worse on corn liquor than you'd think.
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#1954199 - 07/15/10 02:07 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: millerbl00]
StevieC Offline


Registered: 08/21/08
Posts: 14339
Loc: Niagara Falls, ON, CA (near)
You get more heat realeased from fuel not blended with ethanol than with ethanol so in theory you are getting more energy in the same volume of gas without ethanol that with it.

Your engine might do better without E-10 fuel than with as my 89 Cabriolet does.

My 2006 Santa Fe however sees no difference between E0 and E10 that is signifigant.

Now the EPA says that E-10 burns cleaner but I would think with modern technology and improved fuels of today E-10 isn't necessary to make them burn cleaner but yet we still have them because now they are trying to reduce dependence on foreign oil and the Corn industry has a vested interest and is lobbying.

It's all about politics IMO. wink

And if you are getting horrible mileage I would check into your 02 sensor, Map sensor or MAF sensor not being up to snuff because it should be not that noticeable in cars of the last 10 years. thumbsup
_________________________
'06 Hyundai Sante Fe - 330K KM's
Current Oil: RLI 0w30 (Ask me why)

Don't be part of the Sheeple, check frequently for wool over your eyes. wink

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#1954200 - 07/15/10 02:08 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: SteveSRT8]
Mark72 Offline


Registered: 09/10/09
Posts: 923
Loc: Illinois
I know, that's how it seems for me. My mechanic says that ethanol gunks up engines anyway...but with the major brands, their additives offset that anyway don't they?

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#1954211 - 07/15/10 02:18 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Mark72]
Geo_Prizm Offline


Registered: 09/18/09
Posts: 339
Loc: S.E. WI
Originally Posted By: Mark72
I typically prefer to use major brands of gas, i.e., Mobil, Shell or BP, but we have an FS (Farm Service) gas station in town that offers 87/89/92 octane. The 87 octane is 100% pure gas with no ethanol blended in, and the their other two grands have the ethanol.

My question is, would I get better gas mileage by using the FS 87 with no octane in it? And would it burn cleaner/better?

It's strange, but when I fill up at BP or Shell here in central Illinois and drive to my brothers in Fort Wayine Indian I get awful gas mileage, but when I fill up there for the trip home (Indiana doesn't have to blend ethanol in their gas) I get excellent mileage, and use noticeably less fuel simply by looking at the gauge. But I can't be sure if it's the ZERO ethanol or simply dirving conditions and temps.


I use only pure gasoline.It is almost 5 % more efficient than blended gasoline but then they charge 5-7 cents more for pure than ethanol-added gas.
_________________________
What is typed here is my personal opinion only based on my personal experiences.Do not take it as a 'blanket statement'.


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#1954213 - 07/15/10 02:19 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Geo_Prizm]
Mark72 Offline


Registered: 09/10/09
Posts: 923
Loc: Illinois
Originally Posted By: Geo_Prizm
Originally Posted By: Mark72
I typically prefer to use major brands of gas, i.e., Mobil, Shell or BP, but we have an FS (Farm Service) gas station in town that offers 87/89/92 octane. The 87 octane is 100% pure gas with no ethanol blended in, and the their other two grands have the ethanol.

My question is, would I get better gas mileage by using the FS 87 with no octane in it? And would it burn cleaner/better?

It's strange, but when I fill up at BP or Shell here in central Illinois and drive to my brothers in Fort Wayine Indian I get awful gas mileage, but when I fill up there for the trip home (Indiana doesn't have to blend ethanol in their gas) I get excellent mileage, and use noticeably less fuel simply by looking at the gauge. But I can't be sure if it's the ZERO ethanol or simply dirving conditions and temps.


I use only pure gasoline.It is almost 5 % more efficient than blended gasoline but then they charge 5-7 cents more for pure than ethanol-added gas.


But, will this stuff burn cleaner? as in, keeping the injectors and fule lines clean?

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#1954216 - 07/15/10 02:23 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Mark72]
StevieC Offline


Registered: 08/21/08
Posts: 14339
Loc: Niagara Falls, ON, CA (near)
Originally Posted By: Mark72
I know, that's how it seems for me. My mechanic says that ethanol gunks up engines anyway...but with the major brands, their additives offset that anyway don't they?


From all the engines I have torn apart with my dad that we know have run only E-10 fuels (as 99% of them up here are) I can tell you that E-10 doesn't gunk up injectors or anything in the fuel system or the cylinders/valves for that matter.

Ethanol is a natural cleaner so if anything it would be better than pure gasoline additives aside.

It is however very "Drying" and it helps to use an upper cylinder lubricant of sorts in the e-10 blend to keep things from "drying".
_________________________
'06 Hyundai Sante Fe - 330K KM's
Current Oil: RLI 0w30 (Ask me why)

Don't be part of the Sheeple, check frequently for wool over your eyes. wink

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#1954221 - 07/15/10 02:28 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Mark72]
Geo_Prizm Offline


Registered: 09/18/09
Posts: 339
Loc: S.E. WI
The gas I buy is a 'Top Tier' certified pure gasoline, it has all the detergents for keeping the injectors and the fuel lines clean. Are there any Road Ranger gas stations close to where you live Mark72?
_________________________
What is typed here is my personal opinion only based on my personal experiences.Do not take it as a 'blanket statement'.


Top
#1954232 - 07/15/10 02:36 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Geo_Prizm]
Mark72 Offline


Registered: 09/10/09
Posts: 923
Loc: Illinois
Originally Posted By: Geo_Prizm
The gas I buy is a 'Top Tier' certified pure gasoline, it has all the detergents for keeping the injectors and the fuel lines clean. Are there any Road Ranger gas stations close to where you live Mark72?


Yes, we have a Road Ranger and it's a Marathon gas station. why?

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#1954268 - 07/15/10 03:06 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Mark72]
sicko Offline


Registered: 09/22/08
Posts: 936
Loc: Virginia
My car gets distinctly better gas mileage on pure gas than it does on gas with 10% ethanol.

Both sides make arguments, but policies seem to only listen to one side. The people against ethanol seem to have some very valid points, but I haven't done enough research to verify everything myself. But from how my gas mileage improves I prefer pure gas over E-10 any day.

Also, I've heard people are having problems with fuel pumps b/c of E-10, ethanol absorbs moisture which usually helps to lubricate fuel pumps. I forget all the details, but google it and you should find info.

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#1954301 - 07/15/10 03:38 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: sicko]
Shuttler Offline


Registered: 06/18/10
Posts: 88
Loc: Pacific NW
Just ask any cab driver about ethanol and you will discover new expletives real quick. There is no question: ethanol is bad for you.
_________________________
Apply oil to ones self. Lay down slip and slide, measure distance traveled 3 times and average it.

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#1954306 - 07/15/10 03:42 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Shuttler]
StevieC Offline


Registered: 08/21/08
Posts: 14339
Loc: Niagara Falls, ON, CA (near)
Originally Posted By: Shuttler
Just ask any cab driver about ethanol and you will discover new expletives real quick. There is no question: ethanol is bad for you.
Elaborate?
_________________________
'06 Hyundai Sante Fe - 330K KM's
Current Oil: RLI 0w30 (Ask me why)

Don't be part of the Sheeple, check frequently for wool over your eyes. wink

Top
#1954383 - 07/15/10 05:14 PM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: Geo_Prizm]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 15130
Loc: Sunny Florida
Originally Posted By: Geo_Prizm
The gas I buy is a 'Top Tier' certified pure gasoline, it has all the detergents for keeping the injectors and the fuel lines clean. Are there any Road Ranger gas stations close to where you live Mark72?


Many so called Top Tier stations in our area sell 90/10.

Top Tier has nothing to do with the word Pure
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

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#1955064 - 07/16/10 06:24 AM Re: 87 oct (100% ethanol free) or 87 w/10% ethanol? [Re: SteveSRT8]
yaris0128 Offline


Registered: 07/10/10
Posts: 1219
Loc: Bellingham, WA
There are a few benefits from using a GOOD (not AM/PM or 7/11) ethanol blend. Ethanol is a natural solvent and that helps clean your engine from all that [censored] gas you were using before. Aside from the polution it helps bring down the usage of oil. Cars that run on E85 save sooooo much oil. The gas mileage does hella suck compared to 100% gas but if we all ran E85 we wouldnt be talking about expensive gas prices and wouldnt care about how gas mileage as much. Naturally grown fuel is a great alturnative and I support it being blended in fuel.
_________________________
07 Yaris 56k Valvoline White Bottle 5w20
95 del Sol 117k Pennz Ultra 5w20
94 Ninja ZX-6 74k Rotella T 15w40
12 KLX250S 5k Rotella T 15w40

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