2010 Denali ticking noise
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donjetman
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E85 (ethanol) like methanol, attracts water, and some of the ethanol (like unleaded) ends up in the oil in the crankcase and depletes the additve package. And inevitably some of the gunk that is set free also ends up in the oil.
These days I like to fillup with Chevron occasionally or/and use Techron fuel system additive occasionally.
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petethepug
Michael
Diesel & Marine engines are the notorious culprits for water contamination in fuel. Running e85 3 years straight in a 6.2L actually extends the oil service calculator to at least 30% longer.
I’m more concerned about the brake fluid and it’s affinity for moisture than e85. Assuming there was an ounce of water in the e85, it would not migrate to the bottom of the tank like petrol. It’s miscible with e85 so it’s concentration is immediately diluted into the entire fuel supply.
e85 has up to 4.9% water from its manufacturing process.
The stations I purchase e85 from sell high volumes. The potential of contamination from sitting idle isn’t there. Last week a guy with a Silverado 3500 towing a 5th wheel car carrier filled up with 38 gal of the stuff. The guy said his motor *****’n loves the stuff, especially in 100+ temps.
Like all fuels, it has its strong points and weaknesses depending on climate and pricing. My wife’s 07 Beetle is almost $60 (280-310 mi range) to fill up on 87 and the Esky is $80 (210-225 mi range) on e85.
When the offset of using e85 literally pays the $14k purchase price of your vehicle in 3.5 years, there’s no downside.
The Bug in 87
The Esky on e85
I’m more concerned about the brake fluid and it’s affinity for moisture than e85. Assuming there was an ounce of water in the e85, it would not migrate to the bottom of the tank like petrol. It’s miscible with e85 so it’s concentration is immediately diluted into the entire fuel supply.
e85 has up to 4.9% water from its manufacturing process.
Ethanol and water - and disappearing octane!
It could be that I'm giving the wrong impression here but on a cold winter's evening there is nothing I like so much as a small glass of whisky. Settling into my favourite armchair alongside the dying embers of a log fire and savouring the delights to come, I watch carefully as the dash of tepid...
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The stations I purchase e85 from sell high volumes. The potential of contamination from sitting idle isn’t there. Last week a guy with a Silverado 3500 towing a 5th wheel car carrier filled up with 38 gal of the stuff. The guy said his motor *****’n loves the stuff, especially in 100+ temps.
Like all fuels, it has its strong points and weaknesses depending on climate and pricing. My wife’s 07 Beetle is almost $60 (280-310 mi range) to fill up on 87 and the Esky is $80 (210-225 mi range) on e85.
When the offset of using e85 literally pays the $14k purchase price of your vehicle in 3.5 years, there’s no downside.
The Bug in 87
The Esky on e85
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Writefast
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OP, did you ever get to the bottom of this?
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