Non-Ethanol Fuel

[Seadweller]

Wawa and a couple of other stations in my area have non-ethanol, though I'm not sure of the octane. I'm pretty sure however it's 89. I am definitely concerned with the effect of ethanol fuel on the rubber lines.

[Gilles]

Originally Posted by Seadweller

Wawa and a couple of other stations in my area have non-ethanol, though I'm not sure of the octane. I'm pretty sure however it's 89. I am definitely concerned with the effect of ethanol fuel on the rubber lines.

I believe that the Ethanol (and Methanol) affects the metal fuel lines as it promotes rust, but may be wrong..

[JFP in PA]

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[JFP in PA]

Originally Posted by Gilles

I believe that the Ethanol (and Methanol) affects the metal fuel lines as it promotes rust, but may be wrong..

Gas containing ethanol has multiple downsides:

1. A given volume of ethanol is approximately one third lower in BTU output than the same volume of pure gas, so any level of ethanol is going to have lower power potential.

2. Ethanol picks up water and carries it in gas. As the direct result, any gas containing ethanol will cause mild steel fuel system components, lines, or tanks to rust.

3. Vehicles converted to E85 use have all stainless fuel components and special injectors to deal with the corrosive nature of higher alcohol level's water content.

[rfuerst911sc]

Originally Posted by JFP in PA

Gas containing ethanol has multiple downsides:

1. A given volume of ethanol is approximately one third lower in BTU output than the same volume of pure gas, so any level of ethanol is going to have lower power potential.

2. Ethanol picks up water and carries it in gas. As the direct result, any gas containing ethanol will cause mild steel fuel system components, lines, or tanks to rust.

3. Vehicles converted to E85 use have all stainless fuel components and special injectors to deal with the corrosive nature of higher alcohol level's water content.

Curious on your thoughts of running non-ethanol 89 octane vs. E10 93 octane ? As you stated any % of ethanol will have less BTU's then " straight " gas . So is non 89 close to E10 93 octane ? Will there be a noticeable difference in performance ? I know the knock sensors will kick in if needed but just curious on your thoughts . My gut tells me 89 octane non-ethanol may be the better choice .

[JFP in PA]

Originally Posted by rfuerst911sc

Curious on your thoughts of running non-ethanol 89 octane vs. E10 93 octane ? As you stated any % of ethanol will have less BTU's then " straight " gas . So is non 89 close to E10 93 octane ? Will there be a noticeable difference in performance ? I know the knock sensors will kick in if needed but just curious on your thoughts . My gut tells me 89 octane non-ethanol may be the better choice .

A best, the performance differences for four octane rating numbers is small, but still in the favor of the 93. If you are concerned about the corrosion potential from the ethanol, simply add something like StaBil when filling up, which will prevent the problem while stabilizing the fuel.

[rfuerst911sc]

Originally Posted by JFP in PA

A best, the performance differences for four octane rating numbers is small, but still in the favor of the 93. If you are concerned about the corrosion potential from the ethanol, simply add something like StaBil when filling up, which will prevent the problem while stabilizing the fuel.

Thank you for the reply .

[JohnRedS]

This is a great forum. I have been in the gas business for many years and this is the first thread regarding ethanol blended fuels that did not include combat between posters. It is also very refreshing to see accurate and factual responses regarding this highly charged and often political issue.