Which is the lesser of two evils?

A

alexhack

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Nov 8, 2008

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Red Deer, Alberta

• Dec 29, 2011

• #1

I've done a search but I think I'm more confused now then when I started. :face-icon-small-con Regular w/ethanol or premium? My 09 M8 is designed for regular but ethanol is bad and I will lose performance with premium but there is no ethanol. As the title says, which is the lesser of two evils?

Thanks,
Alex

 

T

TheBreeze

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Jul 23, 2008

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Sussex, Wisconsin

• Dec 29, 2011

• #2

I would use the non ethanol 91, but that's just me. Those sleds get run with 87 10% ethanol all the time out here in the midwest at LOW elevation without problems.

 

A

alexhack

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Nov 8, 2008

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Red Deer, Alberta

• Dec 29, 2011

• #3

I've run both through it (mostly regular tho) and didn't really notice any difference. Its long term affects with either that Im truely concerned about.

 

A

Ausm7499

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Nov 26, 2007

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Lewiston, Idaho

• Dec 29, 2011

• #4

I agree ethanol sucks and avoid running it in most of my toys but prior to modding my sled I ran 87 w/ethanol exclusively in my 08 M1K and never had any issues with it. I would stick with the lower octane and the lower price.

 

summ8rmk

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yakima, wa.

• Dec 29, 2011

• #5

2,300 miles with ethanol blend 87octane.still on original spark plugs.

 

MT Backcountry

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Montana

• Dec 29, 2011

• #6

From what i hear it is better to run lower octane with stock sleds and only 91 octane if you have mods,pipe, air intake, reeds. Good luck

 

D

DTR

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• Dec 29, 2011

• #7

alexhack said:

I've done a search but I think I'm more confused now then when I started. :face-icon-small-con Regular w/ethanol or premium? My 09 M8 is designed for regular but ethanol is bad and I will lose performance with premium but there is no ethanol. As the title says, which is the lesser of two evils?

Thanks,
Alex

Click to expand...

With excwption to the 2010+ 800 HO, and the race sled, ALL Arctics are tuned with 87 +10% Ethanol from the factory. Non-Eth fuel is hard to get in MN, especially up North, so the map is designed around 87E10.

DTR

 

A

alexhack

Well-known member

Nov 8, 2008

471

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Red Deer, Alberta

• Dec 29, 2011

• #8

So really the only worry with ethanol is its affinity to water. Just dont let the fuel sit for any length of time and by keeping the tank full will maybe lessen the posibility of moisture build up in the tank and therefore less moisture in the fuel? Am I correct on this?

 

WyoBoy1000

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Red Lodge MT to North, CO

• Dec 29, 2011

• #9

E fuel can break down in as little as 10 days (so I hear) I don't worry during season but every time I break one out after the summer I completely drain the tank and start with new.