E85, Fuel system, breather tank ?

[rredd14]

Installed a return style fuel system so I could run E85. I also installed a breather tank and connected both valve cover breathers to it. My question is should I be getting this much liquid after just 200-300 miles?

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[Jay-rod427]

I don't have definitive experience to say whether that's a normal amount or not, but at least your separators are doing their job.

On a side note Ethanol does draw and hold more moisture than standard 93 octane. On alcohol drag motors I do have experience with they will collect that amount of moisture in one pass fwiw.

 

[rredd14]

Thanks for the reply. Reading more and more it looks like humidity is playing a big part as well.

 

[Jay-rod427]

Is the fluid collected mostly water with small amount of oil in it? Looks that way.

 

[rredd14]

Is the fluid collected mostly water with small amount of oil in it? Looks that way.

Yes it is.

 

[Jay-rod427]

That's the semi good news. A bunch of oil blow by would make it kind of a milky mixture. I'd say you're right with high humidity, and E85 getting a ton of water collection. Most of the other seperators only seperate oil efficiently so they never notice.

Forced induction/intercooling also attributes to this since the incoming air is heated, then cooled, to be heated again causing condensation.

 

[rredd14]

My concern now that I'm seeing that much water is what the inside of the engine is gonna look like after prolonged use of E85. I guess it's like good medications they all have side affects.

 

[2qwk4ya]

I have a similar setup. I probably get 3-4oz. every 1k miles. I saved it in a water bottle it never separates. There is no water in it.
It smells like moonshine. ethanol vapors condensing into liquid. pure ethanol? we have our own mobile distillery. LOL!


Edit,
I just went out to my shop and looked at 1 of the bottles and still has not separated after 5-6mths Still has the color of honey. and smells like liquor.

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[rredd14]

I guess that's a good thing. Thanks for the reply.

 

[ProChargerTECH]

Normal, if your separator isn't near a heat source. No temp to evaporate the water, and with high humidity, well... is what it is.

Kinda like the froth you can get under the oil cap.

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