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Old 07-10-2019, 12:09 AM   #21 (permalink)
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Mr. Kraut Burner of the PNW

I want to understand this correctly. Driving your Geo Metro in the recent past you have used mainly pure unleaded gasoline (grade?)(octane?) and ethanol free and gotten a reduction in fuel consumption. Is that a Fair Statement!


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Old 07-10-2019, 12:13 AM   #22 (permalink)
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Quote:
Originally Posted by TexasCotton View Post
Mr. Kraut Burner of the PNW

I want to understand this correctly. Driving your Geo Metro in the recent past you have used mainly pure unleaded (grade?)(octane?) and ethanol free and gotten a reduction in fuel consumption. Is that a Fair Statement!
yes,

running regular unleaded (E-10) I was averaging 44-45mpg
running Ethanol Free regular unleaded (E-0) I'm averaging 49-50mpg

that's more than the governments estimate of 3% loss in running ethanol
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Old 07-10-2019, 01:24 PM   #23 (permalink)
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Thank you Kraut

I would have to leave my home and drive 53min to find a ethanol free gasoline fuel aka the good stuff. Debating how desperate I am to sit in a vehicle for 2 hours for better fuel or the other option to process my own home brew via phase separation.
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Old 07-10-2019, 06:32 PM   #24 (permalink)
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Originally Posted by TexasCotton View Post
...I would have to..... drive 53min to find a ethanol free gasoline fuel aka the good stuff.
Fifteen or twenty years ago, grass-roots pure-gas.org listed ~ 2000 E0 sources in Canada & the U,S. Ten(?) years ago, Dallas listed under 100(70?) E0 sources. Today, pure-gas.org lists 14,382 E0 sources in Canada & the U.S. & Texas lists 263 E0 sources. Hey, maybe an E0 source will open closer to you.
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Old 07-10-2019, 07:39 PM   #25 (permalink)
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Are you certain that's how it works? To use a similar item as an analogy.....get the properties of a 5w30 oil by mixing a 5w20 and a 5w40.Gasoline itself is a mixture of a lot of different compounds anyway.
Your analogy is not appropriate. Oil lubricates aren't meant to burn in the powerstroke of an 87 octane engine. Gasoline engineers build 87 octane gasoline engines to use 87 octane E0 gasoline. 87 octane E10 is two fuels, 114 octane ethanol & 84 octane gasoline. If a particular car, using(not burning efficiently) 87 octane E10 is knocking, it is the 84 octane gasoline component that knocks. Possibly, switching to 87 octane E0 could stop an 87 octane gasoline engine from knocking on inaccurate, but designated 87 octane E10. Also, 114 octane ethanol must ignite, mostly outside the powerstroke of the 87 octane gasoline. In essence, 87 octane E0 burns in the powerstroke of the 87 gasoline engine. That is why my last five featherfooted 87 octane gasoline engines got 8%, 8%, 7%-8%, 7% & 5% better MPG burning 87 octane E0, not using (burning inefficiently) incorrectly, but designated 87 octane E10.
Like you stated, octanes in gasoline are a mixture of molecules. However, 87 octane E0 is centered around 87 octane. Incorrectly, but designated 87 E10 has two centers, one centering around 84 octane gasoline component & one centering around 114 octane ethanol component.

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Old 07-10-2019, 10:22 PM   #26 (permalink)
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FYI
I am also using the mandated smog reformulated gasoline according to the Energy department//https://www.eia.gov/petroleum/gasdiesel/gas_geographies.php#reformulatedmap
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Old 07-11-2019, 07:00 PM   #27 (permalink)
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FYI......I am also using the mandated smog reformulated gasoline according to the Energy department.....
FYI..... Some people burning ethanol-free gasoline (E0) have passed emissions tests. At least two have been informed that their tests have been exceptionally low in emissions.

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Old 07-13-2019, 12:04 AM   #28 (permalink)
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filled up with E-10 again

fuel econ dropped to 47.8mpg this tank
I'm perfectly content with that kind of economy, but if it drops much more, it may be worth the price of the E-0
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Old 07-13-2019, 03:18 AM   #29 (permalink)
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FYI..... Some people burning ethanol-free gasoline (E0) have passed emissions tests. At least two have been informed that their tests have been acceptionally low in emissions.
A couple thoughts

First plenty of VW diesel vehicles passed smog USA & EU and then VW continued to mislead about that issue

Second ethanol has been around since the last oil crisis and Brazil set the domestic production pace with sugar cane . The USA (California specifically) EPA mandate that blended fuels have ethanol for major metropolitan areas aka LA . So now you and I have E10 octane 87 gasoline forced upon us . I am not a fan of currently ethanol blended gasoline. … both E10 and E15 shorten the life of a vehicle engine and outboard marine engine. Do a search on YouTube about phase separation of E10 gasoline ..
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Old 07-13-2019, 12:19 PM   #30 (permalink)
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Quote:
Originally Posted by KrautBurner View Post
over 4 tanks of regular E-10 I was averaging about 44.5mpg
after 3 tanks of E-0 my average is 49.9mpg
what is the cost per mile???????????????????????

I mean I pay 3.399 for 18MPG
or pay 3.99 for 25MPG gas


Mobil or chevron 91 octane 3.999 = 0.159999¢/mile
Arco 87 Octane 3.399 = 0.18883¢/miles..

COST PER MILES matters more

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